What is a PRP ?
A PRP is a probable prime number, a number that nobody knows how to prove
or disprove its primality.
Here are some criterions that can be used to recognize these numbers
:
- N does not have any prime factor up to 2^32.
- N cannot be trivially written into a product.
- Take 3 square-free consecutive bases such that (b1/N)=(b2/N)=(b3/N)= -1. N
should be such that b1^((N-1)/2)=b2^((N-1)/2)=b3^((N-1)/2)= -1 (mod N).
- Take a prime base such that (b/N)= -1 and b<>b1<>b2<>b3.
N should pass the strong test in base b.
- or more (if someone has got an idea) !!!
Submit your PRPs
See the Top discoverers
See the Latest PRPs
Search by form
| Rank |
Probable prime |
Digits (> 50000) |
Who ? |
When ? |
| 1001 | 2^1116184+1883521 | 336005 | Enzo Doria | 02/2017 |
| 1002 | 2^1115727+27683 | 335868 | Enzo Doria | 01/2024 |
| 1003 | 2^1114974+28759 | 335641 | Enzo Doria | 02/2024 |
| 1004 | 2^1114517+1880087 | 335504 | Enzo Doria | 10/2016 |
| 1005 | (5*10^335480+31)/9 | 335480 | Serge Batalov | 11/2022 |
| 1006 | 5*3^701688+2^701688 | 334791 | Jon Grantham | 08/2023 |
| 1007 | (101^166849+1)/102 | 334418 | Paul Bourdelais | 12/2020 |
| 1008 | (3^700897+1)/4 | 334413 | Paul Bourdelais | 04/2010 |
| 1009 | 2^1109200+223201 | 333903 | Enzo Doria | 05/2024 |
| 1010 | 2^1108463+32513 | 333681 | Enzo Doria | 05/2024 |
| 1011 | 2^1104500+22411 | 332488 | Enzo Doria | 10/2023 |
| 1012 | 2^1104408-114539 | 332460 | Enzo Doria | 03/2015 |
| 1013 | 2^1101921+82085 | 331712 | Enzo Doria | 10/2016 |
| 1014 | 2^1101895+29963 | 331704 | Enzo Doria | 03/2024 |
| 1015 | 2^1101167-1101167^2 | 331485 | Henri Lifchitz | 07/2024 |
| 1016 | 2^1101091+224153 | 331462 | Enzo Doria | 06/2024 |
| 1017 | 2^1100655+683513 | 331331 | Enzo Doria | 01/2017 |
| 1018 | (10^330906+71)/9 | 330906 | Serge Batalov | 07/2015 |
| 1019 | 2^1098346+482899 | 330636 | Enzo Doria | 11/2016 |
| 1020 | 2^1096976+25 | 330223 | Henri Lifchitz | 11/2024 |
| 1021 | (19*10^330041+53)/9 | 330042 | Rytis Slatkevicius | 12/2024 |
| 1022 | (2^1096212+19)/5 | 329992 | Stefano Morozzi | 09/2022 |
| 1023 | 2^1095679+1878713 | 329833 | Enzo Doria | 09/2016 |
| 1024 | 2^1094874+27499 | 329590 | Enzo Doria | 01/2024 |
| 1025 | 2^1094740-1851539 | 329550 | Enzo Doria | 08/2015 |
| 1026 | 2^1092242+19 | 328798 | Stefano Morozzi | 10/2022 |
| 1027 | (19*10^328590+53)/9 | 328591 | Rytis Slatkevicius | 12/2024 |
| 1028 | 2^1091469-379369 | 328565 | Enzo Doria | 03/2014 |
| 1029 | 2^1090801+24227 | 328364 | Enzo Doria | 10/2023 |
| 1030 | 2^1087944+39091 | 327504 | Enzo Doria | 11/2024 |
| 1031 | (69^178093-1)/68 | 327485 | Paul Bourdelais | 08/2020 |
| 1032 | (10^326884+7)/421 | 326882 | Alfred Reich | 12/2021 |
| 1033 | 2^1085750+582349 | 326844 | Enzo Doria | 11/2016 |
| 1034 | (54308^69169-1)/(54308^263-1) | 326261 | Ryan Propper | 11/2023 |
| 1035 | 2^1083596+483061 | 326195 | Enzo Doria | 12/2016 |
| 1036 | (2^541456-1)*10^162995+2^541455-1 | 325990 | paolo galliani | 01/2019 |
| 1037 | 2^1082908+583561 | 325988 | Enzo Doria | 05/2017 |
| 1038 | 30^220411-29^220411 | 325574 | Jean-Louis Charton | 10/2018 |
| 1039 | 2^1081308+7 | 325507 | Stefano Morozzi | 10/2022 |
| 1040 | 2^1080151+225413 | 325158 | Enzo Doria | 08/2024 |
| 1041 | 2^1080032+25171 | 325123 | Enzo Doria | 11/2023 |
| 1042 | 2^1078242+1881649 | 324584 | Enzo Doria | 11/2016 |
| 1043 | 2^1077737+1880117 | 324432 | Enzo Doria | 10/2016 |
| 1044 | 3^679017-5*2^679017 | 323974 | Jon Grantham | 08/2023 |
| 1045 | 2^1076006+29539 | 323911 | Enzo Doria | 03/2024 |
| 1046 | 2^1075573+32417 | 323780 | Enzo Doria | 05/2024 |
| 1047 | 2^1075425+1880117 | 323736 | Enzo Doria | 10/2016 |
| 1048 | (28^223381+1)/29 | 323267 | Paul Bourdelais | 12/2020 |
| 1049 | 10^322999+187071 | 323000 | Stefano Morozzi | 03/2019 |
| 1050 | 10^322999-143151 | 322999 | Patrick De Geest | 05/2020 |
| 1051 | 2^1072744+32641 | 322929 | Enzo Doria | 05/2024 |
| 1052 | 2^1072146+1886869 | 322749 | Enzo Doria | 04/2017 |
| 1053 | 2^1072118-7321953 | 322740 | Enzo Doria | 02/2015 |
| 1054 | 2025^97561-2024^97561 | 322579 | Henri Lifchitz | 01/2025 |
| 1055 | 2^1071026+1886869 | 322411 | Enzo Doria | 04/2017 |
| 1056 | 2^1070539+1880633 | 322265 | Enzo Doria | 10/2016 |
| 1057 | 2^1069788+26587 | 322039 | Enzo Doria | 12/2023 |
| 1058 | 2^1069293-1147195 | 321890 | Enzo Doria | 05/2015 |
| 1059 | 2^1065968+1880941 | 320889 | Enzo Doria | 10/2016 |
| 1060 | 2^1065897-1147195 | 320867 | Enzo Doria | 05/2015 |
| 1061 | 2^1063427+1882103 | 320124 | Enzo Doria | 12/2016 |
| 1062 | 2^1061095-1061095 | 319422 | Henri Lifchitz | 10/2013 |
| 1063 | 2^1060950+653119 | 319378 | Enzo Doria | 12/2016 |
| 1064 | 2^1060363+782753 | 319202 | Enzo Doria | 11/2016 |
| 1065 | 2^1060028+31771 | 319101 | Enzo Doria | 04/2024 |
| 1066 | (71^172259-1)/70 | 318895 | Paul Bourdelais | 08/2020 |
| 1067 | 2^1058425+38507 | 318618 | Enzo Doria | 11/2024 |
| 1068 | -30*Bern(85996)/236037521 | 318354 | Sergey Batalov | 10/2023 |
| 1069 | 2^1055665+30407 | 317787 | Enzo Doria | 03/2024 |
| 1070 | 2^1054736+483061 | 317508 | Enzo Doria | 12/2016 |
| 1071 | 2^1053965+1879667 | 317276 | Enzo Doria | 10/2016 |
| 1072 | (43^194119-1)/42 | 317086 | Paul Bourdelais | 08/2020 |
| 1073 | 2^1052899+225413 | 316955 | Enzo Doria | 08/2024 |
| 1074 | 2^1052186-458165 | 316740 | Enzo Doria | 03/2015 |
| 1075 | 11^303909+2 | 316489 | Paul Bourdelais | 08/2023 |
| 1076 | 2^1049026+214609 | 315789 | Enzo Doria | 11/2023 |
| 1077 | 2^1048576+69661 | 315653 | Boyan Hu | 08/2024 |
| 1078 | 2^1046613-114685 | 315062 | Enzo Doria | 04/2015 |
| 1079 | 2^1045625-459373 | 314765 | Enzo Doria | 06/2015 |
| 1080 | 10^(2*157363+1)-8*10^157363-1 | 314727 | Robert Price | 07/2023 |
| 1081 | (7*10^314564-61)/9 | 314564 | Erik Branger | 09/2016 |
| 1082 | 2^1044771+228023 | 314508 | Enzo Doria | 11/2024 |
| 1083 | 2^1044206+7 | 314338 | Stefano Morozzi | 10/2022 |
| 1084 | (7^371669-1)/6 | 314096 | Paul Bourdelais | 02/2010 |
| 1085 | (53^181981-1)/52 | 313784 | Paul Bourdelais | 08/2020 |
| 1086 | (8^347437-5^347437)/3 | 313767 | Jon Grantham | 08/2023 |
| 1087 | (10^313741+1)/11/11294677 | 313733 | Alfred Reich | 04/2024 |
| 1088 | 2^1041944+283051 | 313657 | Enzo Doria | 12/2016 |
| 1089 | (1624^97969-1)/(1624^313-1) | 313533 | Sergey Batalov | 11/2023 |
| 1090 | 2^1041153-114391 | 313419 | Enzo Doria | 02/2015 |
| 1091 | (2^1039700+9)/5 | 312981 | Stefano Morozzi | 09/2022 |
| 1092 | (74^167311+1)/75 | 312742 | Paul Bourdelais | 12/2020 |
| 1093 | 2^1038871+1866983 | 312732 | Enzo Doria | 04/2016 |
| 1094 | 2^1038545+71657 | 312634 | Enzo Doria | 08/2023 |
| 1095 | (55^179573-1)/54 | 312521 | Paul Bourdelais | 08/2020 |
| 1096 | 2^1037647+1881263 | 312363 | Enzo Doria | 11/2016 |
| 1097 | 2^1037226+1879699 | 312237 | Enzo Doria | 10/2016 |
| 1098 | 2^1036867+1865843 | 312129 | Enzo Doria | 02/2016 |
| 1099 | (76^165947+1)/77 | 312114 | Paul Bourdelais | 01/2021 |
| 1100 | 2^1036324+39091 | 311965 | Enzo Doria | 11/2024 |
| 1101 | 2^1036020-114539 | 311874 | Enzo Doria | 02/2015 |
| 1102 | (90^159463-1)/89 | 311628 | Paul Bourdelais | 08/2020 |
| 1103 | 2^1034546+28819 | 311430 | Enzo Doria | 02/2024 |
| 1104 | 2^1032240+1883431 | 310736 | Enzo Doria | 01/2017 |
| 1105 | 64211^64588+64588^64211 | 310514 | Norbert Schneider | 11/2023 |
| 1106 | 2^1031450+29629 | 310498 | Enzo Doria | 03/2024 |
| 1107 | 2^1030352+1870021 | 310167 | Enzo Doria | 06/2016 |
| 1108 | 2^1030046+1882843 | 310075 | Enzo Doria | 11/2016 |
| 1109 | 2^1029120+227971 | 309796 | Enzo Doria | 11/2024 |
| 1110 | 3^648872+16 | 309591 | Robert Price | 04/2020 |
| 1111 | (16976^73441-1)/(16976^271-1) | 309498 | Ryan Propper | 11/2023 |
| 1112 | 64221^64366+64366^64221 | 309451 | Norbert Schneider | 06/2023 |
| 1113 | (11121^76729-1)/(11121^277-1) | 309336 | Ryan Propper | 11/2023 |
| 1114 | 2^1027478+219259 | 309302 | Enzo Doria | 02/2024 |
| 1115 | 2^1026999+20513 | 309158 | Enzo Doria | 07/2023 |
| 1116 | 5^442281+2 | 309142 | Paul Bourdelais | 01/2021 |
| 1117 | 2^1026204+22741 | 308919 | Enzo Doria | 09/2023 |
| 1118 | 2^1026190+15 | 308914 | Stefano Morozzi | 10/2022 |
| 1119 | 2^1025108+20851 | 308589 | Enzo Doria | 08/2023 |
| 1120 | 2^1022860+234121 | 307912 | Enzo Doria | 03/2025 |
| 1121 | A352736(16) | 306985 | Kellen Shenton | 05/2022 |
| 1122 | 2^1019777+213947 | 306984 | Enzo Doria | 10/2023 |
| 1123 | (11^293831-1)/10 | 305993 | Paul Bourdelais | 03/2010 |
| 1124 | (67^167449-1)/66 | 305773 | Paul Bourdelais | 08/2020 |
| 1125 | (62^170539+1)/63 | 305671 | Paul Bourdelais | 12/2020 |
| 1126 | 2^1015321-1015321 | 305643 | Henri Lifchitz | 08/2013 |
| 1127 | 2^1014775+27113 | 305478 | Enzo Doria | 12/2023 |
| 1128 | 2^1014450+7 | 305380 | Stefano Morozzi | 10/2022 |
| 1129 | 2^1014336+215731 | 305346 | Enzo Doria | 12/2023 |
| 1130 | 2^1014224-2791229 | 305312 | Enzo Doria | 01/2016 |
| 1131 | (10^304986+7)/673 | 304984 | Alfred Reich | 11/2021 |
| 1132 | 65473^45250+45250^65473 | 304818 | Hans Havermann | 02/2022 |
| 1133 | 66012^41423+41423^66012 | 304794 | Hans Havermann | 03/2022 |
| 1134 | 65073^48202+48202^65073 | 304742 | Hans Havermann | 04/2022 |
| 1135 | 2^1012054+31669 | 304659 | Enzo Doria | 06/2024 |
| 1136 | 238176^19+19^238176 | 304569 | Hans Havermann | 03/2022 |
| 1137 | 73122^14615+14615^73122 | 304539 | Hans Havermann | 05/2022 |
| 1138 | 64492^52639+52639^64492 | 304487 | Hans Havermann | 03/2022 |
| 1139 | 65955^41288+41288^65955 | 304437 | Hans Havermann | 04/2022 |
| 1140 | 71729^17530+17530^71729 | 304403 | Hans Havermann | 03/2022 |
| 1141 | 70170^21733+21733^70170 | 304336 | Hans Havermann | 03/2022 |
| 1142 | 2^1010751-107709 | 304267 | Enzo Doria | 03/2014 |
| 1143 | 84473^3994+3994^84473 | 304222 | Hans Havermann | 03/2022 |
| 1144 | (2^1010623-1)/12602017578957977 | 304212 | Tony Prest / Never Odd Or Even | 02/2014 |
| 1145 | 74442^12125+12125^74442 | 303998 | Hans Havermann | 02/2022 |
| 1146 | 77842^8039+8039^77842 | 303989 | Hans Havermann | 01/2022 |
| 1147 | 64209^54140+54140^64209 | 303935 | Hans Havermann | 02/2022 |
| 1148 | 2^1009577+1869587 | 303913 | Enzo Doria | 06/2016 |
| 1149 | 67389^32338+32338^67389 | 303906 | Hans Havermann | 02/2022 |
| 1150 | 8^336419-7^336419 | 303817 | Jean-Louis Charton | 01/2008 |
| 1151 | 2^1009168+15 | 303790 | Stefano Morozzi | 10/2022 |
| 1152 | 80766^5771+5771^80766 | 303782 | Hans Havermann | 01/2022 |
| 1153 | 66094^39385+39385^66094 | 303724 | Hans Havermann | 01/2022 |
| 1154 | 69147^24574+24574^69147 | 303589 | Hans Havermann | 02/2022 |
| 1155 | 78390^7459+7459^78390 | 303580 | Hans Havermann | 01/2022 |
| 1156 | 2^1008301+1869377 | 303529 | Enzo Doria | 06/2016 |
| 1157 | 65008^46615+46615^65008 | 303492 | Hans Havermann | 02/2022 |
| 1158 | (2^1007838+5)/3 | 303389 | Serge Batalov | 08/2015 |
| 1159 | 65018^46293+46293^65018 | 303343 | Hans Havermann | 01/2022 |
| 1160 | 6^389756+5 | 303290 | Paul Bourdelais | 02/2021 |
| 1161 | 71016^18649+18649^71016 | 303285 | Hans Havermann | 01/2022 |
| 1162 | 2^1007065+29231 | 303157 | Enzo Doria | 03/2024 |
| 1163 | 80160^6047+6047^80160 | 303129 | Hans Havermann | 01/2022 |
| 1164 | 67434^31237+31237^67434 | 303094 | Hans Havermann | 03/2022 |
| 1165 | 65537^42102+42102^65537 | 303063 | Hans Havermann | 02/2022 |
| 1166 | 71790^16553+16553^71790 | 302874 | Hans Havermann | 11/2021 |
| 1167 | 65208^44129+44129^65208 | 302874 | Hans Havermann | 11/2021 |
| 1168 | 84181^3960+3960^84181 | 302858 | Hans Havermann | 11/2021 |
| 1169 | (13703^73441-1)/(13703^271-1) | 302691 | Ryan Propper | 11/2023 |
| 1170 | 71956^16087+16087^71956 | 302682 | Hans Havermann | 11/2021 |
| 1171 | 2^1005326+383059 | 302634 | Enzo Doria | 12/2016 |
| 1172 | 2^1004929+1877567 | 302514 | Enzo Doria | 08/2016 |
| 1173 | 69341^22978+22978^69341 | 302418 | Hans Havermann | 12/2021 |
| 1174 | 111443^516+516^111443 | 302306 | Hans Havermann | 12/2021 |
| 1175 | 67638^29387+29387^67638 | 302218 | Hans Havermann | 11/2021 |
| 1176 | 2^1003494+1874899 | 302082 | Enzo Doria | 06/2016 |
| 1177 | 75189^10400+10400^75189 | 302037 | Hans Havermann | 12/2021 |
| 1178 | 67237^31042+31042^67237 | 302026 | Hans Havermann | 12/2021 |
| 1179 | 64540^47791+47791^64540 | 302005 | Hans Havermann | 11/2021 |
| 1180 | 2^1003046+60529 | 301947 | Enzo Doria | 04/2016 |
| 1181 | 83278^4209+4209^83278 | 301815 | Hans Havermann | 09/2021 |
| 1182 | 64431^48250+48250^64431 | 301763 | Hans Havermann | 09/2021 |
| 1183 | 67237^30714+30714^67237 | 301716 | Hans Havermann | 09/2021 |
| 1184 | 64641^46288+46288^64641 | 301581 | Hans Havermann | 09/2021 |
| 1185 | 71513^16482+16482^71513 | 301572 | Hans Havermann | 10/2021 |
| 1186 | 72017^15396+15396^72017 | 301565 | Hans Havermann | 09/2021 |
| 1187 | 65534^39927+39927^65534 | 301540 | Hans Havermann | 10/2021 |
| 1188 | (23^221411-1)/22 | 301501 | Paul Bourdelais | 08/2020 |
| 1189 | 63169^59152+59152^63169 | 301441 | Hans Havermann | 09/2021 |
| 1190 | 75055^10348+10348^75055 | 301336 | Hans Havermann | 09/2021 |
| 1191 | 2^1000647+1881353 | 301225 | Enzo Doria | 11/2016 |
| 1192 | 83686^3961+3961^83686 | 301086 | Hans Havermann | 10/2021 |
| 1193 | 68529^24742+24742^68529 | 301078 | Hans Havermann | 09/2021 |
| 1194 | 65207^41416+41416^65207 | 301072 | Hans Havermann | 10/2021 |
| 1196 | 2^1000000+821751 | 301030 | Tony Prest / Never Odd Or Even | 10/2015 |
| 1195 | 2^999999+77151 | 301030 | Norman Luhn | 09/2023 |
| 1197 | 90762^2071+2071^90762 | 300984 | Hans Havermann | 06/2021 |
| 1198 | 63909^51142+51142^63909 | 300934 | Hans Havermann | 08/2021 |
| 1199 | 2^999646+1874029 | 300924 | Enzo Doria | 06/2016 |
| 1200 | 66280^34607+34607^66280 | 300856 | Hans Havermann | 06/2021 |
| 1201 | 65534^38925+38925^65534 | 300817 | Hans Havermann | 07/2021 |
| 1202 | 63296^56517+56517^63296 | 300794 | Hans Havermann | 06/2021 |
| 1203 | 110610^523+523^110610 | 300694 | Hans Havermann | 06/2021 |
| 1204 | 66428^33609+33609^66428 | 300684 | Hans Havermann | 06/2021 |
| 1205 | 74247^11210+11210^74247 | 300672 | Hans Havermann | 06/2021 |
| 1206 | (59^169777-1)/58 | 300649 | Paul Bourdelais | 08/2020 |
| 1207 | 10^300476+3 | 300477 | Ed Trice | 10/2012 |
| 1208 | 10^300476-530913 | 300476 | Patrick De Geest | 03/2016 |
| 1209 | 66703^31960+31960^66703 | 300471 | Hans Havermann | 06/2021 |
| 1210 | 63722^51915+51915^63722 | 300468 | Hans Havermann | 06/2021 |
| 1211 | 2^998053+1879667 | 300444 | Enzo Doria | 09/2016 |
| 1212 | 77018^7959+7959^77018 | 300437 | Hans Havermann | 07/2021 |
| 1213 | 314738^9+9^314738 | 300337 | Anatoly F. Selevich | 02/2011 |
| 1214 | 2^997689+217787 | 300335 | Enzo Doria | 01/2024 |
| 1215 | 69478^20987+20987^69478 | 300281 | Hans Havermann | 07/2021 |
| 1216 | 64088^48393+48393^64088 | 300239 | Hans Havermann | 07/2021 |
| 1217 | 64605^44146+44146^64605 | 300084 | Hans Havermann | 08/2021 |
| 1218 | 2^996845+29027 | 300081 | Enzo Doria | 02/2024 |
| 1219 | 7^355039-6^355039 | 300043 | Jean-Louis Charton | 05/2011 |
| 1220 | 67594^27465+27465^67594 | 300035 | Hans Havermann | 06/2021 |
| 1221 | 10^300000+287389 | 300001 | Patrick De Geest | 10/2019 |
| 1222 | 10^300000-83657 | 300000 | Patrick De Geest | 10/2019 |
| 1223 | 70599^17756+17756^70599 | 300000 | Hans Havermann | 06/2021 |
| 1224 | numbpart(72526161452) | 299999 | Serge Batalov | 04/2017 |
| 1225 | 2^996182-114431 | 299881 | Enzo Doria | 02/2015 |
| 1226 | 3*2^996126+5 | 299865 | Jon Grantham | 07/2023 |
| 1227 | 2^996034-17 | 299837 | Stefano Morozzi | 07/2022 |
| 1228 | 2^995793+36587 | 299764 | Enzo Doria | 09/2024 |
| 1229 | (19*10^299640+77)/3 | 299641 | Robert Price | 03/2023 |
| 1230 | 2^995214-2788361 | 299590 | Enzo Doria | 12/2015 |
| 1231 | 2^994791-114319 | 299462 | Enzo Doria | 01/2015 |
| 1232 | 2^994490-1863791 | 299372 | Enzo Doria | 01/2016 |
| 1233 | 2^993322+1885729 | 299020 | Enzo Doria | 03/2017 |
| 1234 | 2^993227+230033 | 298992 | Enzo Doria | 12/2024 |
| 1235 | (36395^65536+36393^65536)/2 | 298913 | Kellen Shenton | 04/2022 |
| 1236 | 2^992711-2788807 | 298836 | Enzo Doria | 12/2015 |
| 1237 | 2^992525-114199 | 298780 | Enzo Doria | 12/2014 |
| 1238 | (7^353501-3^353501)/4 | 298743 | Jon Grantham | 08/2023 |
| 1239 | 2^992329+1884707 | 298721 | Enzo Doria | 02/2017 |
| 1240 | 2^992292+229801 | 298710 | Enzo Doria | 12/2024 |
| 1241 | 2^992052+215491 | 298638 | Enzo Doria | 11/2023 |
| 1242 | 2^991968-23 | 298613 | Stefano Morozzi | 07/2022 |
| 1243 | 2^991715-19 | 298536 | Stefano Morozzi | 07/2022 |
| 1244 | (10^298414+7)/191/823/56921/1334467 | 298398 | Alfred Reich | 10/2021 |
| 1245 | 2^989562+25 | 297888 | Stefano Morozzi | 05/2021 |
| 1246 | 2^988580+214051 | 297593 | Enzo Doria | 10/2023 |
| 1247 | 2^988537+218837 | 297580 | Enzo Doria | 03/2024 |
| 1248 | (19*10^297497+77)/3 | 297498 | Robert Price | 03/2023 |
| 1249 | (2*10^297488-23)/3 | 297488 | Robert Price | 10/2022 |
| 1250 | (2^986191+1)/3 | 296873 | Vincent Diepeveen | 06/2008 |
