PRP Records

Probable Primes Top 10000

(301815 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 ?
67512^377803-1838635113731Enzo Doria05/2015
67522^377799+52223113729Yves Minet08/2010
6753(2^377791+3258)/2113727Stefano Morozzi02/2021
675411^109190-270113710Enzo Doria12/2012
675528206^10739+10739^28206113698Hans Havermann01/2021
67567*10^113693+9113694Robert Price09/2015
675713899^27442+27442^13899113692Norbert Schneider12/2020
6758(82*10^113681+161)/9113682Robert Price10/2019
675926121^22478+22478^26121113673Hans Havermann01/2021
67604*10^113658+49113659Robert Price01/2019
6761(10^113656+7)/40231/6439001113645Alfred Reich06/2021
6762(2*10^113631+529)/9113631Robert Price01/2018
67632^377408-2798279113612Enzo Doria04/2016
6764(292^46336+1)/(292^256+1)113605Martin Hopf12/2023
676513706^27459+27459^13706113596Norbert Schneider12/2020
67665*10^113586+57113587Robert Price12/2018
6767(2^377242+2794)/2113561Stefano Morozzi02/2021
67682^377222+93679113556Yves Minet02/2011
6770262147#+316847113552Makoto Morimoto02/2016
676927172^15101+15101^27172113552Hans Havermann01/2021
6771(2^377131+2018)/2113528Stefano Morozzi09/2020
67722^377026-458903113497Enzo Doria04/2015
6773(2^377014+2202)/2113493Stefano Morozzi09/2020
677434791^1828+1828^34791113488Hans Havermann02/2021
6775(2^376967+258)/2113479Stefano Morozzi09/2020
6776(29*10^113468-17)/3113469Robert Price09/2019
677735^73477-34^73477113454Robert Price05/2012
6778(14*10^113451-89)/3113452Robert Price05/2020
67792^376790+27113426Lelio R Paula03/2013
67802^376786-112701113424Enzo Doria06/2014
67812^376731+21113408Lelio R Paula03/2013
67829*10^113394-73113395Robert Price01/2021
678329660^6651+6651^29660113387Hans Havermann01/2021
67852^376634+1871245113379Enzo Doria05/2016
6784(4^188318+17)/3113379Robert Price02/2017
6786E(29532)/492842728006750534663978950979381235113367Thomas Ritschel01/2021
67872^376576-344369113361Enzo Doria07/2015
67882^376549-4543113353Yves Minet03/2019
6789(17*2^376526-1)/223113345Lelio R Paula03/2014
6790(27*2^376441-1)/811113319Lelio R Paula03/2014
6791(2^376350+3538)/2113293Stefano Morozzi09/2020
679227265^14272+14272^27265113273Hans Havermann02/2021
679332174^3315+3315^32174113269Hans Havermann02/2021
6794(2*10^113248+73)/3113248Robert Price09/2020
67952^376128-21237113226Enzo Doria06/2013
67965*10^113224-81113225Robert Price01/2019
679710^113220+51409113221Patrick De Geest02/2021
679910^113220-1000001113220Robert Price08/2020
679810^113220-61779113220Patrick De Geest02/2021
6800(2^376102+1578)/2113218Stefano Morozzi09/2020
6801(2^375996+3102)/2113186Stefano Morozzi09/2020
680237258^1091+1091^37258113184Hans Havermann02/2021
6803(94*10^113176+11)/3113178Robert Price04/2020
6804(46*10^113162+521)/9113163Robert Price02/2019
680514*29^77375+17875113155Eric Chen06/2025
6806(2^375885+3614)/2113153Stefano Morozzi09/2020
6807(2^375873+2006)/2113149Stefano Morozzi09/2020
68083*10^113137+23113138Robert Price03/2022
6809(8*10^113135-269)/9113135Robert Price09/2021
6810(2^375726+694)/2113105Stefano Morozzi09/2020
681126050^21959+21959^26050113100Hans Havermann02/2021
68122^375638-1787171113079Enzo Doria03/2016
6813(2^375563+2178)/2113056Stefano Morozzi09/2020
68142^375537+4847113048Yves Minet02/2011
6815(17^91837+16^91837)/33113000Robert Price08/2013
68165*F(270343)*(F(270343)+1)+1112997Serge Batalov04/2015
68172^375350-3221112992Yves Minet07/2011
6818(13*2^375306+1)/7112979Lelio R Paula03/2014
68192^375305+76757112979Enzo Doria05/2016
68202^375258+1874989112964Enzo Doria07/2016
6821(29^77237-1)/28112950Robert Price04/2012
682226620^17483+17483^26620112939Hans Havermann01/2021
68232^375154+74959112933Enzo Doria04/2016
6824(266*10^112930-17)/3112932Robert Price07/2020
6825(2^375134+778)/2112927Stefano Morozzi09/2020
6826(85*10^112919+293)/9112920Robert Price12/2019
682729412^6899+6899^29412112907Hans Havermann02/2021
6828(191*10^112903-17)/3112905Robert Price11/2021
6829(2^375022+1210)/2112893Stefano Morozzi09/2020
683025992^22039+22039^25992112889Hans Havermann02/2021
68312^374993-2787163112885Enzo Doria11/2015
6832(697*10^112869+23)/9112871Robert Price04/2021
6833(19*10^112851+377)/9112852Alfred Reich11/2022
683430420^5111+5111^30420112813Hans Havermann02/2021
683513699^27268+27268^13699112800Norbert Schneider12/2020
6836123^53970+2112793Lelio R Paula06/2013
683712308*27^78796+23112790Eric Chen07/2023
683828942^7887+7887^28942112785Hans Havermann01/2021
68392^374640-4685112778Yves Minet05/2019
684012^104501-11112776Riley Fisher12/2023
684157290^93+93^57290112775Hans Havermann01/2021
6842115^54726-54726^115112774Norman Luhn09/2024
684313608^27277-27277^13608112758Norbert Schneider12/2022
6844(2^374556+682)/2112753Stefano Morozzi09/2020
6845p(22852)#/2+512112745Robert Price05/2017
6846(11*10^112742-131)/3112743Robert Price09/2018
68472^374441-21049112718Enzo Doria06/2013
68484*10^112706-93112707Robert Price07/2020
6849(2^374321+1)/3112682H.&R. Lifchitz12/2000
6850(2^374213+1766)/2112650Stefano Morozzi09/2020
6851(2^374094+2674)/2112614Stefano Morozzi09/2020
6852(13^101089-1)/12112607Paul Bourdelais03/2010
68533^236011-8828112606Enzo Doria05/2014
685431854^3427+3427^31854112602Hans Havermann02/2021
6855(85*10^112530-373)/9112531Robert Price05/2021
6856(2^373748+1090)/2112510Stefano Morozzi09/2020
6857(2^373727+1806)/2112503Stefano Morozzi01/2021
685827618^11821+11821^27618112479Hans Havermann01/2021
6859U(602921)/4823369112479Serge Batalov07/2024
686026343^18580+18580^26343112460Hans Havermann01/2021
686139^70666+2112435Lelio R Paula11/2013
6862(134*10^112400+7)/3112402Robert Price02/2020
6863(2^373365+326)/2112394Stefano Morozzi09/2020
6864(2^373350-7)/3112390Lelio R Paula03/2014
68652^373306-1840931112377Enzo Doria06/2015
68668*10^112371-37112372Robert Price03/2022
6867(2^373262+270)/2112363Stefano Morozzi09/2020
68686*10^112359-79112360Robert Price03/2022
686934409^1842+1842^34409112356Hans Havermann02/2021
6870(142*10^112352-7)/9112354Robert Price12/2019
687125580^24633+24633^25580112336Hans Havermann01/2021
68722^373117+1872107112320Enzo Doria05/2016
6873(2^373083+2226)/2112309Stefano Morozzi01/2021
6874(35*10^112308+37)/9112309Robert Price05/2022
687527963^10376+10376^27963112301Hans Havermann01/2021
68762^373040+2792761112297Enzo Doria03/2016
6877(156^51203-1)/155112293Anonymous06/2024
6878EPrime(112280)112280Eric W. Weisstein10/2010
68792^372950+7112270Lelio R Paula03/2013
68802^372945+1872167112268Enzo Doria05/2016
688136274^1243+1243^36274112249Hans Havermann02/2021
6882(55*10^112246+629)/9112247Robert Price01/2022
6883(2^372872+3798)/2112246Stefano Morozzi02/2021
688425513^25060+25060^25513112232Hans Havermann02/2021
6885(53*10^112229-611)/9112230Robert Price02/2022
6886(2^372754+3094)/2112210Stefano Morozzi09/2020
68876*10^112208+43112209Robert Price07/2020
6888(2^372728+3058)/2112203Stefano Morozzi09/2020
688932061^3158+3158^32061112195Hans Havermann02/2021
68902^372695+72113112193Enzo Doria04/2016
68912^372689-2563112191Yves Minet07/2014
68922^372638-1859441112176Enzo Doria03/2016
68933^235074-113056112159Enzo Doria07/2014
6894-E(29242)/489848365125303139750087112140Thomas Ritschel01/2021
6895(2^372514+1822)/2112138Stefano Morozzi02/2021
689629468^6387+6387^29468112135Hans Havermann02/2021
6897(2^372428+3742)/2112112Stefano Morozzi01/2021
689825375^25454-25454^25375112110Norbert Schneider01/2021
6899131^52949-130112108Norbert Schneider02/2019
6900(91*10^112098-1)/9112100Robert Price04/2015
6901(68*10^112087-149)/9112088Robert Price07/2022
69022^372314+212419112078Enzo Doria08/2023
69032^372310-85061112077Paul Bourdelais02/2012
6904(10^112067+53)/9112067Serge Batalov07/2015
6905(2^372237+2082)/2112055Stefano Morozzi09/2020
690675^59760+2112054Lelio R Paula08/2013
6907(2^372200+1710)/2112044Stefano Morozzi09/2020
6908(10^112048+7)/8747/373157112039Alfred Reich06/2021
6909(2^372181+2250)/2112038Stefano Morozzi01/2021
6910F(536233)/825798821/1102495049/5641839306317112036Serge Batalov07/2024
6911(2^372161+2574)/2112032Stefano Morozzi09/2020
69128*10^112018-49112019Robert Price08/2019
69142^372108+74221112016Enzo Doria04/2016
6913(2^372109+2046)/2112016Stefano Morozzi09/2020
69158*10^112011-73112012Robert Price01/2022
6916(184*10^112007-1)/3112009Robert Price02/2020
69175*10^112003+81112004Robert Price03/2019
6918215^48018+48018^215112000Norbert Schneider10/2018
691925549^24148+24148^25549111979Hans Havermann02/2021
69202^371970-459491111975Enzo Doria05/2015
692141^69427-40^69427111971Robert Price07/2012
6922(2^371782+358)/2111918Stefano Morozzi01/2021
692315*25^80056+446111915Eric Chen10/2023
6924(34*10^111902-547)/9111903Robert Price03/2021
6925(10^111902+71)/9111902Serge Batalov07/2015
6926(2^371625+1610)/2111870Stefano Morozzi09/2020
692729080^7027+7027^29080111865Hans Havermann01/2021
692831307^3730+3730^31307111820Hans Havermann02/2021
69292^371440-112865111815Enzo Doria06/2014
69302^371426-459161111811Enzo Doria05/2015
693125768^21771+21771^25768111779Hans Havermann02/2021
693228022^9747+9747^28022111777Hans Havermann02/2021
6933(94*10^111770+11)/3111772Robert Price04/2020
69342^371276-461267111766Enzo Doria07/2015
69356*10^111760+43111761Robert Price07/2020
693698079!4-1024111747Robert Price11/2019
6937(2^371186+3162)/2111738Stefano Morozzi09/2020
693810^(2*55862+1)-4*10^55862-1111725Robert Price07/2023
69392^371098-113261111712Enzo Doria07/2014
6940(7*10^111706-61)/9111706Erik Branger01/2011
69412^371044+1869391111696Enzo Doria05/2016
694226310^17581+17581^26310111688Hans Havermann01/2021
694388^57416+87111645Norbert Schneider11/2015
69442^370829-109693111631Enzo Doria04/2014
694515^94906-2111619Lelio R Paula11/2013
694625835^20904+20904^25835111614Hans Havermann02/2021
6947(2^370726+1198)/2111600Stefano Morozzi09/2020
694827758^10479+10479^27758111597Hans Havermann02/2021
69492^370695-4627111591Yves Minet05/2019
69507*10^111579-87111580Robert Price06/2020
69512^370643-37111575Yves Minet01/2012
6952(2^370655-5)/2439111575Lelio R Paula03/2014
69532^370610-3911111565Yves Minet04/2017
6954(154*10^111549+17)/9111551Robert Price06/2022
695526200^18097+18097^26200111550Hans Havermann01/2021
6956286^45405+45405^286111532Norbert Schneider04/2015
69574*5^159563-9111531Lelio R Paula11/2014
69585*10^111528-21111529Robert Price12/2021
6959(4^185225+23)/3111517Robert Price10/2018
69602^370393-2797093111500Enzo Doria03/2016
6961(21*2^370382-1)/629111495Lelio R Paula03/2014
6962(2^370371+554)/2111493Stefano Morozzi09/2020
69636^143273-5111489Paul Bourdelais01/2021
69642^370292-2791979111469Enzo Doria03/2016
6965(14*10^111443-11)/3111444Robert Price08/2022
69662^370177-461551111435Enzo Doria07/2015
6967(2^370169+1706)/2111432Stefano Morozzi09/2020
6968109^54683-108111413Norbert Schneider02/2017
6970(83*10^111406-173)/9111407Robert Price04/2021
6969959^37362-37362^959111407Henri Lifchitz10/2024
6971(2^370043+1010)/2111394Stefano Morozzi09/2020
697232961^2396+2396^32961111392Hans Havermann10/2020
6973numbpart(10^10+76282)111391Serge Batalov04/2015
6974(19*10^111385+11)/3111386Robert Price07/2023
6975(23*10^111380-29)/3111381Robert Price03/2022
69762^369974+733111374Lelio R Paula05/2013
6977121^53470+120111367Norbert Schneider10/2018
69782^369915-286267111356Enzo Doria07/2015
6979(62*10^111347-629)/9111348Robert Price07/2021
69802^369855-1615111338Lelio R Paula05/2017
69817*10^111325+3111326Robert Price08/2015
698251^65176+2111293Lelio R Paula08/2013
6983Phi(43329,-43329)111283Henri Lifchitz06/2025
69842^369643-1865767111274Enzo Doria03/2016
69852^369603+885111262Lelio R Paula05/2017
698625555^22564+22564^25555111252Hans Havermann10/2020
6987F(532391)/89441689/1425422598617111243Serge Batalov07/2024
6988L(532277)111240Renaud Lifchitz03/2004
6989105^55033-2111233Lelio R Paula10/2017
6990(35*10^111232-737)/9111233Robert Price07/2018
699126970^13307+13307^26970111227Hans Havermann10/2020
699225419^23716+23716^25419111210Hans Havermann10/2020
6993(26^78593-3^78593)/23111206Robert Price02/2025
69949*10^111201-29111202Robert Price09/2019
69952^369392+29835111199Lelio R Paula05/2017
69963^233059+16111198Robert Price03/2020
69972^369354-3413111187Yves Minet12/2016
69982^369296-27111170Lelio R Paula02/2013
6999(2468^40960+1)/(2468^8192+1)111161Martin Hopf08/2024
70002^369239-109837111153Enzo Doria05/2014


Find by discoverer :


Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: August, 18 2025 08:13 (Time in France)

Go back
Valid XHTML 1.0!    Valid CSS!