PRP Records

Probable Primes Top 10000

(300560 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) !!!


Submit your PRPs


See the Top discoverers
See the Latest PRPs
Search by form



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 ?
60012^381555-109051114860Enzo Doria04/2014
60022^381551+213683114859Enzo Doria09/2023
60032^381546-113501114857Enzo Doria08/2014
6004(7*10^114845-19)/3114846Robert Price10/2020
600526675^20178+20178^26675114833Hans Havermann02/2021
6006(2^381436+1182)/2114824Stefano Morozzi09/2020
60073^240644+16114817Robert Price04/2020
60082^381360-110429114801Enzo Doria05/2014
6009(17*10^114795+79)/3114796Robert Price04/2019
6010(66^63079+1)/67114774Paul Bourdelais09/2017
60112^381252-115079114769Enzo Doria06/2015
6012(2^381251+3186)/2114768Stefano Morozzi09/2020
60132^381209-29323114756Enzo Doria07/2015
60142^381207-111546435114755Paul Bourdelais10/2021
6015569^41651-568^41651114754Jean-Louis Charton11/2009
60162^381201+1873205114753Enzo Doria06/2016
6017(85*10^114737+293)/9114738Robert Price12/2019
6018(265*10^114736+17)/3114738Robert Price03/2020
6019(2^381062+2170)/2114711Stefano Morozzi09/2020
60202^380974-112991114685Enzo Doria07/2014
602137097^1234+1234^37097114679Hans Havermann02/2021
6022(26*10^114658-119)/3114659Robert Price07/2023
602388^58949-87114626Norbert Schneider11/2015
6024(2^380773+662)/2114624Stefano Morozzi09/2020
6025Phi(155285,10)/242674820198201114610Makoto Kamada02/2024
602629913^6782+6782^29913114608Hans Havermann02/2021
6027(331*10^114605-7)/9114607Robert Price04/2022
60282^380700+91114603Lelio R Paula03/2013
6029(2^380632+2578)/2114582Stefano Morozzi09/2020
60307*10^114577+27114578Robert Price11/2020
603210^114575+3^114576114576Mike Oakes09/2010
603110^114575+66561114576Patrick De Geest02/2017
603310^114575-581081114575Patrick De Geest02/2017
60342^380587-115315114569Enzo Doria06/2015
603531874^3927+3927^31874114558Hans Havermann02/2021
60362^380513-216925114546Enzo Doria05/2014
60372^380451-1840087114528Enzo Doria06/2015
6038(2^380426+1510)/2114520Stefano Morozzi09/2020
6039(15*2^380388-1)/539114507Lelio R Paula04/2014
60402^380279-461347114476Enzo Doria07/2015
6041(331*10^114454-7)/9114456Robert Price04/2022
604227121^16590+16590^27121114447Hans Havermann01/2021
604325966^25555+25555^25966114445Hans Havermann01/2021
6044(611*32^76029-53)/31114437Eric Chen11/2023
6045(11*10^114400+529)/9114401Robert Price09/2021
60462^380021+1871147114398Enzo Doria05/2016
60472^380005+1869707114393Enzo Doria05/2016
60482^379958-113297114379Enzo Doria07/2014
6049(2^379897+1274)/2114361Stefano Morozzi01/2021
60502^379881-109105114356Enzo Doria04/2014
6051(21*2^379857-1)/13114349Lelio R Paula03/2014
6052(4*10^114340+83)/3114341Robert Price02/2018
6053(26*10^114317-77)/3114318Robert Price11/2019
6054(4*10^114296+149)/9114296Robert Price04/2018
605588^58773-87114284Norbert Schneider11/2015
605627764^13065+13065^27764114280Hans Havermann01/2021
6057(132^53891-1)/131114278Anonymous06/2024
60582^379529-2790283114250Enzo Doria03/2016
60592^379522+1869115114248Enzo Doria05/2016
6060(145*10^114226-1)/9114228Serge Batalov12/2014
60612^379317-115033114186Enzo Doria06/2015
6062(22*10^114178+47)/3114179Robert Price06/2021
6063(17*2^379246-1)/17407114162Lelio R Paula03/2014
6064(2^379192+226)/2114148Stefano Morozzi09/2020
6065(228^48407-1)/227114139Alexander Zhirkov03/2023
60666*10^114091+23114092Robert Price09/2020
6067(4*10^114076+143)/3114077Robert Price03/2018
6068332*25^81584+12357114053Eric Chen10/2023
6069(2^378820+3226)/2114036Stefano Morozzi01/2021
6070(2^378754+2058)/2114017Stefano Morozzi09/2020
607113643^27572-27572^13643114008Norbert Schneider12/2022
6073(46*10^113969+683)/9113970Robert Price03/2019
6072(83*10^113969+133)/9113970Robert Price08/2021
607432226^3439+3439^32226113966Hans Havermann02/2021
6075(77*10^113963-149)/9113964Robert Price03/2022
607678*10^113954-7113956Robert Price10/2020
60772*10^113941+9113942Dmitry Domanov11/2010
607810^113933+145897113934Patrick De Geest02/2021
6081(2^378478+1642)/2113933Stefano Morozzi09/2020
607910^113933-8000000001113933Robert Price11/2020
608010^113933-66167113933Patrick De Geest02/2021
60822339662057597*10^113903+9113916Robert Price03/2021
60834*10^113905+91113906Robert Price08/2018
608410^113894+76609113895Patrick De Geest02/2021
608610^113894-10000001113894Robert Price09/2020
608510^113894-373947113894Patrick De Geest02/2021
608733933^2270+2270^33933113881Hans Havermann02/2021
60884*10^113874-21113875Robert Price09/2018
60892^378272-16565113872Enzo Doria04/2013
60902^378217-109075113855Enzo Doria04/2014
60912^378198+67113849Lelio R Paula03/2013
60922^378173-3249113842Yves Minet12/2014
6093(2^378155-5)/6597113833Lelio R Paula03/2014
60942^378137+1334025113831Henri Lifchitz10/2024
609592941#+(355049#)/(92941#)113830Makoto Morimoto10/2017
609630030^6173+6173^30030113829Hans Havermann01/2021
60972^378128-262977113828Enzo Doria05/2014
60982^378123-113215113827Enzo Doria07/2014
60996^146274-18893113824Enzo Doria03/2013
610034596^1949+1949^34596113815Hans Havermann02/2021
61012^378078+75113813Lelio R Paula03/2013
6102(28*10^113810+449)/9113811Robert Price11/2021
610326273^21448+21448^26273113799Hans Havermann02/2021
61042^377966+255255113780Paul Bourdelais10/2021
61052^377940+63113772Lelio R Paula03/2013
61062^377941-2785843113772Enzo Doria04/2016
6107(7*10^113757+11)/9113757Tyler Busby01/2023
61082^377810+1875109113733Enzo Doria09/2016
61092^377803-1838635113731Enzo Doria05/2015
61102^377799+52223113729Yves Minet08/2010
6111(2^377791+3258)/2113727Stefano Morozzi02/2021
611211^109190-270113710Enzo Doria12/2012
611328206^10739+10739^28206113698Hans Havermann01/2021
61147*10^113693+9113694Robert Price09/2015
611513899^27442+27442^13899113692Norbert Schneider12/2020
6116(82*10^113681+161)/9113682Robert Price10/2019
611726121^22478+22478^26121113673Hans Havermann01/2021
61184*10^113658+49113659Robert Price01/2019
6119(10^113656+7)/40231/6439001113645Alfred Reich06/2021
6120(2*10^113631+529)/9113631Robert Price01/2018
61212^377408-2798279113612Enzo Doria04/2016
6122(292^46336+1)/(292^256+1)113605Martin Hopf12/2023
612313706^27459+27459^13706113596Norbert Schneider12/2020
61245*10^113586+57113587Robert Price12/2018
6125(2^377242+2794)/2113561Stefano Morozzi02/2021
61262^377222+93679113556Yves Minet02/2011
6128262147#+316847113552Makoto Morimoto02/2016
612727172^15101+15101^27172113552Hans Havermann01/2021
6129(2^377131+2018)/2113528Stefano Morozzi09/2020
61302^377026-458903113497Enzo Doria04/2015
6131(2^377014+2202)/2113493Stefano Morozzi09/2020
613234791^1828+1828^34791113488Hans Havermann02/2021
6133(2^376967+258)/2113479Stefano Morozzi09/2020
6134(29*10^113468-17)/3113469Robert Price09/2019
613535^73477-34^73477113454Robert Price05/2012
6136(14*10^113451-89)/3113452Robert Price05/2020
61372^376790+27113426Lelio R Paula03/2013
61382^376786-112701113424Enzo Doria06/2014
61392^376731+21113408Lelio R Paula03/2013
61409*10^113394-73113395Robert Price01/2021
614129660^6651+6651^29660113387Hans Havermann01/2021
61432^376634+1871245113379Enzo Doria05/2016
6142(4^188318+17)/3113379Robert Price02/2017
6144E(29532)/492842728006750534663978950979381235113367Thomas Ritschel01/2021
61452^376576-344369113361Enzo Doria07/2015
61462^376549-4543113353Yves Minet03/2019
6147(17*2^376526-1)/223113345Lelio R Paula03/2014
6148(27*2^376441-1)/811113319Lelio R Paula03/2014
6149(2^376350+3538)/2113293Stefano Morozzi09/2020
615027265^14272+14272^27265113273Hans Havermann02/2021
615132174^3315+3315^32174113269Hans Havermann02/2021
6152(2*10^113248+73)/3113248Robert Price09/2020
61532^376128-21237113226Enzo Doria06/2013
61545*10^113224-81113225Robert Price01/2019
615510^113220+51409113221Patrick De Geest02/2021
615710^113220-1000001113220Robert Price08/2020
615610^113220-61779113220Patrick De Geest02/2021
6158(2^376102+1578)/2113218Stefano Morozzi09/2020
6159(2^375996+3102)/2113186Stefano Morozzi09/2020
616037258^1091+1091^37258113184Hans Havermann02/2021
6161(94*10^113176+11)/3113178Robert Price04/2020
6162(46*10^113162+521)/9113163Robert Price02/2019
6163(2^375885+3614)/2113153Stefano Morozzi09/2020
6164(2^375873+2006)/2113149Stefano Morozzi09/2020
61653*10^113137+23113138Robert Price03/2022
6166(8*10^113135-269)/9113135Robert Price09/2021
6167(2^375726+694)/2113105Stefano Morozzi09/2020
616826050^21959+21959^26050113100Hans Havermann02/2021
61692^375638-1787171113079Enzo Doria03/2016
6170(2^375563+2178)/2113056Stefano Morozzi09/2020
61712^375537+4847113048Yves Minet02/2011
6172(17^91837+16^91837)/33113000Robert Price08/2013
61735*F(270343)*(F(270343)+1)+1112997Serge Batalov04/2015
61742^375350-3221112992Yves Minet07/2011
6175(13*2^375306+1)/7112979Lelio R Paula03/2014
61762^375305+76757112979Enzo Doria05/2016
61772^375258+1874989112964Enzo Doria07/2016
6178(29^77237-1)/28112950Robert Price04/2012
617926620^17483+17483^26620112939Hans Havermann01/2021
61802^375154+74959112933Enzo Doria04/2016
6181(266*10^112930-17)/3112932Robert Price07/2020
6182(2^375134+778)/2112927Stefano Morozzi09/2020
6183(85*10^112919+293)/9112920Robert Price12/2019
618429412^6899+6899^29412112907Hans Havermann02/2021
6185(191*10^112903-17)/3112905Robert Price11/2021
6186(2^375022+1210)/2112893Stefano Morozzi09/2020
618725992^22039+22039^25992112889Hans Havermann02/2021
61882^374993-2787163112885Enzo Doria11/2015
6189(697*10^112869+23)/9112871Robert Price04/2021
6190(19*10^112851+377)/9112852Alfred Reich11/2022
619130420^5111+5111^30420112813Hans Havermann02/2021
619213699^27268+27268^13699112800Norbert Schneider12/2020
6193123^53970+2112793Lelio R Paula06/2013
619412308*27^78796+23112790Eric Chen07/2023
619528942^7887+7887^28942112785Hans Havermann01/2021
61962^374640-4685112778Yves Minet05/2019
619712^104501-11112776Riley Fisher12/2023
619857290^93+93^57290112775Hans Havermann01/2021
6199115^54726-54726^115112774Norman Luhn09/2024
620013608^27277-27277^13608112758Norbert Schneider12/2022
6201(2^374556+682)/2112753Stefano Morozzi09/2020
6202p(22852)#/2+512112745Robert Price05/2017
6203(11*10^112742-131)/3112743Robert Price09/2018
62042^374441-21049112718Enzo Doria06/2013
62054*10^112706-93112707Robert Price07/2020
6206(2^374321+1)/3112682H.&R. Lifchitz12/2000
6207(2^374213+1766)/2112650Stefano Morozzi09/2020
6208(2^374094+2674)/2112614Stefano Morozzi09/2020
6209(13^101089-1)/12112607Paul Bourdelais03/2010
62103^236011-8828112606Enzo Doria05/2014
621131854^3427+3427^31854112602Hans Havermann02/2021
6212(85*10^112530-373)/9112531Robert Price05/2021
6213(2^373748+1090)/2112510Stefano Morozzi09/2020
6214(2^373727+1806)/2112503Stefano Morozzi01/2021
621527618^11821+11821^27618112479Hans Havermann01/2021
6216U(602921)/4823369112479Serge Batalov07/2024
621726343^18580+18580^26343112460Hans Havermann01/2021
621839^70666+2112435Lelio R Paula11/2013
6219(134*10^112400+7)/3112402Robert Price02/2020
6220(2^373365+326)/2112394Stefano Morozzi09/2020
6221(2^373350-7)/3112390Lelio R Paula03/2014
62222^373306-1840931112377Enzo Doria06/2015
62238*10^112371-37112372Robert Price03/2022
6224(2^373262+270)/2112363Stefano Morozzi09/2020
62256*10^112359-79112360Robert Price03/2022
622634409^1842+1842^34409112356Hans Havermann02/2021
6227(142*10^112352-7)/9112354Robert Price12/2019
622825580^24633+24633^25580112336Hans Havermann01/2021
62292^373117+1872107112320Enzo Doria05/2016
6230(2^373083+2226)/2112309Stefano Morozzi01/2021
6231(35*10^112308+37)/9112309Robert Price05/2022
623227963^10376+10376^27963112301Hans Havermann01/2021
62332^373040+2792761112297Enzo Doria03/2016
6234(156^51203-1)/155112293Anonymous06/2024
6235EPrime(112280)112280Eric W. Weisstein10/2010
62362^372950+7112270Lelio R Paula03/2013
62372^372945+1872167112268Enzo Doria05/2016
623836274^1243+1243^36274112249Hans Havermann02/2021
6239(55*10^112246+629)/9112247Robert Price01/2022
6240(2^372872+3798)/2112246Stefano Morozzi02/2021
624125513^25060+25060^25513112232Hans Havermann02/2021
6242(53*10^112229-611)/9112230Robert Price02/2022
6243(2^372754+3094)/2112210Stefano Morozzi09/2020
62446*10^112208+43112209Robert Price07/2020
6245(2^372728+3058)/2112203Stefano Morozzi09/2020
624632061^3158+3158^32061112195Hans Havermann02/2021
62472^372695+72113112193Enzo Doria04/2016
62482^372689-2563112191Yves Minet07/2014
62492^372638-1859441112176Enzo Doria03/2016
62503^235074-113056112159Enzo Doria07/2014


Find by discoverer :


Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: November, 21 2024 10:22 (Time in France)

Go back
Valid XHTML 1.0!    Valid CSS!