PRP Records

Probable Primes Top 10000

(301157 PRPs in the top)


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) !!!


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1-250   251-500   501-750   751-1000   1001-1250   1251-1500   1501-1750   1751-2000   
2001-2250   2251-2500   2501-2750   2751-3000   3001-3250   3251-3500   3501-3750   3751-4000   
4001-4250   4251-4500   4501-4750   4751-5000   5001-5250   5251-5500   5501-5750   5751-6000   
6001-6250   6251-6500   6501-6750   6751-7000   7001-7250   7251-7500   7501-7750   7751-8000   
8001-8250   8251-8500   8501-8750   8751-9000   9001-9250   9251-9500   9501-9750   9751-10000   


Rank Probable prime Digits (> 50000) Who ? When ?
67519*6^141303+7109957Lelio R Paula11/2014
675227635^9522+9522^27635109953Hans Havermann11/2020
675378^58099+77109929Norbert Schneider02/2015
67542*10^109928-7109929Robert Price10/2015
675530580^3933+3933^30580109927Hans Havermann11/2020
675626380^14689+14689^26380109926Hans Havermann11/2020
6757(2^365161+1130)/2109925Stefano Morozzi09/2020
6758(27*2^365137-1)/2021109916Lelio R Paula03/2014
675929^75157-30109910Anonymous09/2024
6760(4441*29^75152-24)/7109905Curtis Bright05/2015
6761(2^365087+7)/6015109899Lelio R Paula01/2014
6762(2^365069+3774)/2109897Stefano Morozzi02/2021
676329652^5083+5083^29652109894Mark Rodenkirch10/2020
6764(2^365049+722)/2109891Stefano Morozzi09/2020
6765(35*10^109888-89)/9109889Robert Price02/2022
676618^87533-11109878Lelio R Paula04/2017
67672^364982-5109871Henri Lifchitz04/2006
67683*10^109861+59109862Robert Price08/2018
67695*10^109860-69109861Robert Price02/2021
67702^364936-1867979109857Enzo Doria04/2016
677127013^11652+11652^27013109846Hans Havermann10/2020
67722^364867-112087109836Enzo Doria06/2014
67734^182415-85061109825Mike Oakes06/2011
6774(2^364809+1034)/2109819Stefano Morozzi09/2020
677524972^24972-8323^8323109814Henri Lifchitz10/2024
6776(53*10^109809-287)/9109810Robert Price02/2022
6777(52*10^109807-133)/9109808Robert Price09/2021
677825708^18675+18675^25708109806Hans Havermann10/2020
6779(17^89227+16^89227)/33109788Robert Price08/2013
67802^364687-187109782Lelio R Paula01/2012
67812^364644+67109769Lelio R Paula01/2012
6782(9787*2^364625-1)/24947109763Lelio R Paula05/2015
6783(2^364616+5)/9109760Lelio R Paula01/2014
6784(55*10^109759+89)/9109760Robert Price03/2019
6785(14*32^72921+4171)/31109757Eric Chen04/2023
678612^101694+73109747Lelio R Paula03/2017
678713^98518-66109744Lelio R Paula03/2017
6788(35^71069+2^71069)/37109734Robert Price01/2025
6789(8*10^109721-269)/9109721Robert Price09/2021
67902^364478-113261109719Enzo Doria07/2014
6791(2^364513+1)/(3*44290516579)109719Gord Palameta08/2018
6792(24737*2^364454+1)/3109716Lelio R Paula07/2014
679327814^8777+8777^27814109681Hans Havermann10/2020
6794(62*10^109673+1)/9109674Serge Batalov11/2010
67953^229824+340109654Lelio R Paula03/2017
6796(16623*33^72206-8095)/16109649Eric Chen05/2023
6797(2*10^109645-71)/3109645Robert Price12/2017
6798V(786978)109644Serge Batalov07/2024
67992^364169-112813109626Enzo Doria06/2014
680028822^6359+6359^28822109622Hans Havermann11/2020
680110^109615+21109616Lelio R Paula03/2017
680210^109615-456267109615Patrick De Geest03/2017
6803522^40331-40331^522109607Norman Luhn09/2024
68042^364094-113109604Lelio R Paula01/2012
680525251^21898+21898^25251109600Hans Havermann11/2020
6806(4^182026+11)/3109591Robert Price02/2017
68072^364041-6883109588Lelio R Paula09/2011
680812^101545+11109586Lelio R Paula03/2017
680926536^13475+13475^26536109582Hans Havermann11/2020
68102^363842-2787101109528Enzo Doria03/2016
6811(2^363812+3570)/2109519Stefano Morozzi09/2020
6812(996^36527+1)/997109515Jinyuan Wang12/2024
6813(22699*2^363782+1)/763109511Lelio R Paula07/2014
68142^363769+5711109506Lelio R Paula04/2017
6815(31*2^363748+1)/49109499Lelio R Paula03/2014
681626^77372+25109480Anonymous09/2024
6817(2^363670+100280245065)109476Paul Bourdelais05/2022
6818p(22245)#/2-8109462Robert Price01/2017
68192^363556+55109442Lelio R Paula01/2012
6820(509*10^109414+31)/9109416Robert Price08/2022
6821(2^363437+1682)/2109406Stefano Morozzi09/2020
6822(55459*2^363411+1)/81109401Lelio R Paula07/2014
68232^363406+1871569109397Enzo Doria05/2016
6824(129^51829-1)/128109388Anonymous06/2024
6825(2^363370+1338)/2109385Stefano Morozzi02/2021
6826(2^363349+7)/9109378Lelio R Paula01/2014
6827(13869^26569-1)/(13869^163-1)109375Ryan Propper11/2023
68283^229236+100109374Lelio R Paula03/2017
6829(2^363315+3258)/2109369Stefano Morozzi02/2021
68302^363268-58695109355Lelio R Paula04/2017
68312^363191-112321109332Enzo Doria06/2014
683226231^14718+14718^26231109327Hans Havermann10/2020
683325461^19672+19672^25461109326Hans Havermann10/2020
68344*10^109316-63109317Robert Price10/2018
68352^363120+3109311Donovan Johnson04/2006
6836(10^109297-1)/9109297Paul Bourdelais, Harvey Dubner04/2007
68372^363042-114641109287Enzo Doria04/2015
68382^363020-112793109280Enzo Doria06/2014
6839(8732^27889-1)/(8732^167-1)109256Ryan Propper11/2023
6840(85*10^109253+203)/9109254Robert Price09/2020
684124990^23431+23431^24990109202Hans Havermann10/2020
6842(2^362746+3738)/2109198Stefano Morozzi09/2020
6843(2^362716+1282)/2109189Stefano Morozzi01/2021
6844(67607*2^362695+1)/70499109183Lelio R Paula07/2014
684525060^22737+22737^25060109180Hans Havermann10/2020
6846(9*2^362644+1)/5109167Lelio R Paula03/2014
68475^156181+38109166Lelio R Paula02/2017
6848(2^362623+3618)/2109161Stefano Morozzi09/2020
684925138^21993+21993^25138109157Hans Havermann10/2020
68504*10^109142+91109143Robert Price08/2018
68513^228750+68109142Lelio R Paula03/2017
6852(2^362561+786)/2109142Stefano Morozzi09/2020
6853(23*10^109113+61)/3109114Robert Price01/2022
68542*10^109100-49109101Robert Price09/2020
6855(10223*2^362376+1)/9109090Lelio R Paula07/2014
685665^60167-64^60167109078Robert Price08/2013
68577*3^228589-2109066Lelio R Paula09/2014
685824874^24243+24243^24874109063Hans Havermann11/2020
6859(17*10^109059-161)/9109060Robert Price02/2021
686029158^5495+5495^29158109050Hans Havermann11/2020
6861(78557*2^362188+1)/189109033Lelio R Paula07/2014
68622*7^129008+9109025Lelio R Paula11/2014
686388*10^109022+7109024Robert Price03/2020
686428194^7337+7337^28194108985Hans Havermann10/2020
6865(5*10^108960+91)/3108961Robert Price04/2018
68662^361957+76367108960Enzo Doria05/2016
68672^361873-1411108935Yves Minet01/2013
6868(24737*2^361857+1)/35108933Lelio R Paula07/2014
6869216^216^216+91^91^91108917Henri Lifchitz03/2025
687047^65132-65132^47108908Norman Luhn09/2024
6871115^52842-114108892Norbert Schneider07/2018
687213^97745-24108883Lelio R Paula03/2017
6873(2^361696+2562)/2108882Stefano Morozzi09/2020
687417^88475+8108864Lelio R Paula04/2017
68752^361567+51108843Lelio R Paula01/2012
68762^361563-109501108842Enzo Doria04/2014
687712^100852+83108838Lelio R Paula03/2017
68782^361497+767108822Lelio R Paula01/2012
6879L(520691)/78103651/1057002731/42794551909108791Serge Batalov07/2024
688028019^7630+7630^28019108785Hans Havermann10/2020
688124723^24758-24758^24723108765Norbert Schneider11/2020
68822^361280-112349108757Enzo Doria06/2014
68832^361271-5955108754Lelio R Paula04/2017
688412^100757+19108736Lelio R Paula03/2017
688525368^19333+19333^25368108735Hans Havermann11/2020
6886(2^361195+3618)/2108731Stefano Morozzi09/2020
68872^361153-111546435108718Paul Bourdelais10/2021
688814^94849-61108710Lelio R Paula05/2017
688927267^9700+9700^27267108708Hans Havermann11/2020
6890(19^85009-5^85009)/14108705Robert Price07/2013
689124832^23853+23853^24832108704Hans Havermann11/2020
689227502^8963+8963^27502108701Hans Havermann11/2020
6893(130^51419-1)/129108695Anonymous06/2024
689425807^16278+16278^25807108689Hans Havermann11/2020
6895(11*2^361027+1)/40463108677Lelio R Paula03/2014
68962^360973+1299108664Lelio R Paula04/2017
689724^78728+23108662Anonymous09/2024
68982^360959-109101108660Enzo Doria04/2014
68996*5^155454+7108659Lelio R Paula11/2014
690010^108656+79108657Lelio R Paula02/2017
690110^108656-50001108656Patrick De Geest03/2017
69022^360918-35108648Lelio R Paula01/2012
69034*10^108646-47108647Robert Price10/2021
6904(11*2^360886-1)/7108638Lelio R Paula03/2014
69053*10^108624-49108625Robert Price07/2018
6906(2^360831+666)/2108621Stefano Morozzi09/2020
6907(134*10^108610+7)/3108612Robert Price02/2020
69082*10^108609+29108610Robert Price02/2021
6909(10^108604+7)/71/191108600Alfred Reich06/2021
6910(2^360742+3222)/2108594Stefano Morozzi09/2020
69112^360706-458903108584Enzo Doria04/2015
691231112^3087+3087^31112108567Hans Havermann11/2020
69132^360641-113185108564Enzo Doria07/2014
6914(29*10^108559-71)/3108560Robert Price07/2021
69162^360618+75019108557Enzo Doria04/2016
69152^360618+2025108557Henri Lifchitz01/2025
69172^360607-216367108554Harrison Mesh06/2022
6918(14*10^108545-221)/9108546Robert Price04/2018
6919(44*10^108544-233)/9108545Robert Price01/2019
69203*5^155286+2108541Lelio R Paula11/2014
69217^128422+4108530Lelio R Paula11/2014
69227^128421-80108529Lelio R Paula03/2017
69232^360497+53807108521Yves Minet07/2010
69242^360468-4559108512Yves Minet03/2019
6925(2^360451+578)/2108507Stefano Morozzi09/2020
69262^360366+1459108481Lelio R Paula09/2011
69272^360364-1499108481Yves Minet05/2013
692825662^16871+16871^25662108477Hans Havermann10/2020
692925009^21748+21748^25009108475Hans Havermann10/2020
693014^94642-23108472Lelio R Paula05/2017
6931(197*10^108446-11)/3108448Robert Price03/2020
6932(2^360229+1290)/2108440Stefano Morozzi01/2021
69334*10^108412+9108413Robert Price05/2015
6934(259*10^108409-1)/3108411Robert Price12/2020
6935(2^360122+1194)/2108408Stefano Morozzi09/2020
6936133^51042-132108406Norbert Schneider02/2019
69372^360093-351103108399Enzo Doria06/2015
69382^360042+723108384Lelio R Paula01/2012
693985^56164-2108364Lelio R Paula10/2013
69402^359937-29323108352Enzo Doria07/2015
694122^80712-23108350Anonymous09/2024
6942(2^359922+1762)/2108348Stefano Morozzi09/2020
6943(2^359903+758)/2108342Stefano Morozzi09/2020
69442^359898-19997108341Enzo Doria06/2013
6945(2^359886+2122)/2108337Stefano Morozzi09/2020
69462*5^154948-7108305Lelio R Paula11/2014
694710^108303+13108304Lelio R Paula02/2017
694810^108303-207959108303Patrick De Geest03/2017
69497*10^108300+69108301Robert Price07/2019
6950198^47155-47155^198108300Norman Luhn09/2024
69512^359730+753108290Lelio R Paula12/2011
6952(8*10^108273+13)/3108274Robert Price06/2018
69532^359650-19797108266Enzo Doria06/2013
6954(47*10^108261+259)/9108262Robert Price03/2022
695591^55259-90^55259108255Robert Price07/2015
695610^108251+85749108252Patrick De Geest02/2021
695710^108251-50000000001108251Robert Price12/2020
695810^108251-252081108251Patrick De Geest02/2021
69594*10^108238-71108239Robert Price12/2018
69603^226845+68108233Lelio R Paula03/2017
696131836^2509+2509^31836108227Hans Havermann10/2020
69625^154822-12866108216Enzo Doria05/2014
6963(9*2^359480+1)/5108215Lelio R Paula03/2014
69642^359454-177108207Lelio R Paula12/2011
6965(19*10^108184+191)/3108185Robert Price05/2019
69666^139022-59108181Lelio R Paula02/2017
6967(19*10^108176-43)/3108177Robert Price05/2019
69682^359352-179108176Lelio R Paula12/2011
69692^359338-1858781108172Enzo Doria04/2016
697012^100230-97108167Lelio R Paula03/2017
697127028^10043+10043^27028108163Hans Havermann11/2020
6972(25*2^359297-1)/137108159Lelio R Paula03/2014
6973(2^359262-509203)/9108148Lelio R Paula12/2013
697426583^11702+11702^26583108147Hans Havermann11/2020
6975(3^226648-8)/352715633108131Lelio R Paula12/2013
69766^138956-59108129Lelio R Paula02/2017
69772^359184+30285108126Lelio R Paula04/2017
697813^97059+10108119Lelio R Paula03/2017
69792^359137-81108112Lelio R Paula12/2011
6981(15185*2^359105-1)/567108103Lelio R Paula05/2015
69802^359110-11655108103Lelio R Paula04/2017
69822^359069-933075108091Paul Bourdelais06/2021
698326227^13222+13222^26227108090Hans Havermann10/2020
69848*6^138875+5108067Lelio R Paula11/2014
69852^358987-216919108066Enzo Doria05/2014
6986(2^358977+2714)/2108063Stefano Morozzi09/2020
698739^67918-67918^39108062Norbert Schneider02/2017
698824^78283-1*78283^24108048Dylan Delgado12/2019
698925282^18767+18767^25282108040Hans Havermann11/2020
69902^358785-16933108006Enzo Doria05/2013
6991(2^358783+5)/33383108000Lelio R Paula12/2013
69926^138770-77107985Lelio R Paula02/2017
6993(2^358727-1017)/94178479107980Lelio R Paula12/2013
699410^107976+19107977Lelio R Paula02/2017
699510^107976-202103107976Patrick De Geest03/2017
69962^358684+75781107975Enzo Doria04/2016
699724928^21411+21411^24928107955Hans Havermann10/2020
699899^54094+2107952Lelio R Paula06/2013
6999(2^358583-9)/391107942Lelio R Paula12/2013
7000(2^358562+838)/2107938Stefano Morozzi02/2021


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Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: April, 01 2025 12:28 (Time in France)

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