PRP Records

Probable Primes Top 10000

(302252 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 ?
700210^113220-1000001113220Robert Price08/2020
700110^113220-61779113220Patrick De Geest02/2021
7003(2^376102+1578)/2113218Stefano Morozzi09/2020
7004(2^375996+3102)/2113186Stefano Morozzi09/2020
700537258^1091+1091^37258113184Hans Havermann02/2021
7006(94*10^113176+11)/3113178Robert Price04/2020
7007(46*10^113162+521)/9113163Robert Price02/2019
700814*29^77375+17875113155Eric Chen06/2025
7009(2^375885+3614)/2113153Stefano Morozzi09/2020
7010(2^375873+2006)/2113149Stefano Morozzi09/2020
70113*10^113137+23113138Robert Price03/2022
7012(8*10^113135-269)/9113135Robert Price09/2021
7013(2^375726+694)/2113105Stefano Morozzi09/2020
701426050^21959+21959^26050113100Hans Havermann02/2021
70152^375638-1787171113079Enzo Doria03/2016
7016(2^375563+2178)/2113056Stefano Morozzi09/2020
70172^375537+4847113048Yves Minet02/2011
7018(17^91837+16^91837)/33113000Robert Price08/2013
70195*F(270343)*(F(270343)+1)+1112997Serge Batalov04/2015
70202^375350-3221112992Yves Minet07/2011
7021(13*2^375306+1)/7112979Lelio R Paula03/2014
70222^375305+76757112979Enzo Doria05/2016
70232^375258+1874989112964Enzo Doria07/2016
7024(29^77237-1)/28112950Robert Price04/2012
702526620^17483+17483^26620112939Hans Havermann01/2021
70262^375154+74959112933Enzo Doria04/2016
7027(266*10^112930-17)/3112932Robert Price07/2020
7028(2^375134+778)/2112927Stefano Morozzi09/2020
7029(85*10^112919+293)/9112920Robert Price12/2019
703029412^6899+6899^29412112907Hans Havermann02/2021
7031(191*10^112903-17)/3112905Robert Price11/2021
7032(2^375022+1210)/2112893Stefano Morozzi09/2020
703325992^22039+22039^25992112889Hans Havermann02/2021
70342^374993-2787163112885Enzo Doria11/2015
7035(697*10^112869+23)/9112871Robert Price04/2021
7036(19*10^112851+377)/9112852Alfred Reich11/2022
703730420^5111+5111^30420112813Hans Havermann02/2021
703813699^27268+27268^13699112800Norbert Schneider12/2020
7039123^53970+2112793Lelio R Paula06/2013
704012308*27^78796+23112790Eric Chen07/2023
704128942^7887+7887^28942112785Hans Havermann01/2021
70422^374640-4685112778Yves Minet05/2019
704312^104501-11112776Riley Fisher12/2023
704457290^93+93^57290112775Hans Havermann01/2021
7045115^54726-54726^115112774Norman Luhn09/2024
704613608^27277-27277^13608112758Norbert Schneider12/2022
7047(2^374556+682)/2112753Stefano Morozzi09/2020
7048p(22852)#/2+512112745Robert Price05/2017
7049(11*10^112742-131)/3112743Robert Price09/2018
70502^374441-21049112718Enzo Doria06/2013
7051(15056!^2+1)/(30113*454287444157)112711Michael Porter09/2025
70524*10^112706-93112707Robert Price07/2020
7054(2^374321+1)/3112682H.&R. Lifchitz12/2000
7053Phi(374321,-2)112682Henri Lifchitz12/2025
7055(2^374213+1766)/2112650Stefano Morozzi09/2020
7056(2^374094+2674)/2112614Stefano Morozzi09/2020
7057(13^101089-1)/12112607Paul Bourdelais03/2010
70583^236011-8828112606Enzo Doria05/2014
705931854^3427+3427^31854112602Hans Havermann02/2021
7060Phi(442141,-2)112561Henri Lifchitz12/2025
7061(85*10^112530-373)/9112531Robert Price05/2021
7062(2^373748+1090)/2112510Stefano Morozzi09/2020
7063(2^373727+1806)/2112503Stefano Morozzi01/2021
706427618^11821+11821^27618112479Hans Havermann01/2021
7065U(602921)/4823369112479Serge Batalov07/2024
706626343^18580+18580^26343112460Hans Havermann01/2021
706739^70666+2112435Lelio R Paula11/2013
7068(134*10^112400+7)/3112402Robert Price02/2020
7069(2^373365+326)/2112394Stefano Morozzi09/2020
7070(2^373350-7)/3112390Lelio R Paula03/2014
70713^235532-235532112378Anonymous09/2025
70722^373306-1840931112377Enzo Doria06/2015
70738*10^112371-37112372Robert Price03/2022
7074(2^373262+270)/2112363Stefano Morozzi09/2020
70756*10^112359-79112360Robert Price03/2022
707634409^1842+1842^34409112356Hans Havermann02/2021
7077(142*10^112352-7)/9112354Robert Price12/2019
707825580^24633+24633^25580112336Hans Havermann01/2021
70792^373117+1872107112320Enzo Doria05/2016
7080(2^373083+2226)/2112309Stefano Morozzi01/2021
7081(35*10^112308+37)/9112309Robert Price05/2022
708227963^10376+10376^27963112301Hans Havermann01/2021
70832^373040+2792761112297Enzo Doria03/2016
7084(156^51203-1)/155112293Anonymous06/2024
7085EPrime(112280)112280Eric W. Weisstein10/2010
70862^372950+7112270Lelio R Paula03/2013
70872^372945+1872167112268Enzo Doria05/2016
708836274^1243+1243^36274112249Hans Havermann02/2021
7089(55*10^112246+629)/9112247Robert Price01/2022
7090(2^372872+3798)/2112246Stefano Morozzi02/2021
709125513^25060+25060^25513112232Hans Havermann02/2021
7092(53*10^112229-611)/9112230Robert Price02/2022
7093(2^372754+3094)/2112210Stefano Morozzi09/2020
70946*10^112208+43112209Robert Price07/2020
7095(2^372728+3058)/2112203Stefano Morozzi09/2020
709632061^3158+3158^32061112195Hans Havermann02/2021
70972^372695+72113112193Enzo Doria04/2016
70982^372689-2563112191Yves Minet07/2014
70992^372638-1859441112176Enzo Doria03/2016
71003^235074-113056112159Enzo Doria07/2014
7101-E(29242)/489848365125303139750087112140Thomas Ritschel01/2021
7102(2^372514+1822)/2112138Stefano Morozzi02/2021
710329468^6387+6387^29468112135Hans Havermann02/2021
7104(2^372428+3742)/2112112Stefano Morozzi01/2021
710525375^25454-25454^25375112110Norbert Schneider01/2021
7106131^52949-130112108Norbert Schneider02/2019
7107(91*10^112098-1)/9112100Robert Price04/2015
7108(68*10^112087-149)/9112088Robert Price07/2022
71092^372314+212419112078Enzo Doria08/2023
71102^372310-85061112077Paul Bourdelais02/2012
7111(10^112067+53)/9112067Serge Batalov07/2015
7112(2^372237+2082)/2112055Stefano Morozzi09/2020
711375^59760+2112054Lelio R Paula08/2013
7114(2^372200+1710)/2112044Stefano Morozzi09/2020
7115(10^112048+7)/8747/373157112039Alfred Reich06/2021
7116(2^372181+2250)/2112038Stefano Morozzi01/2021
7117F(536233)/825798821/1102495049/5641839306317112036Serge Batalov07/2024
7118(2^372161+2574)/2112032Stefano Morozzi09/2020
71198*10^112018-49112019Robert Price08/2019
71212^372108+74221112016Enzo Doria04/2016
7120(2^372109+2046)/2112016Stefano Morozzi09/2020
71228*10^112011-73112012Robert Price01/2022
7123(184*10^112007-1)/3112009Robert Price02/2020
71245*10^112003+81112004Robert Price03/2019
7125215^48018+48018^215112000Norbert Schneider10/2018
7126Phi(82303,5#)111990Henri Lifchitz12/2025
712725549^24148+24148^25549111979Hans Havermann02/2021
71282^371970-459491111975Enzo Doria05/2015
712941^69427-40^69427111971Robert Price07/2012
7130(20^86027+19^86027)/39111923Robert Price09/2025
7131(2^371782+358)/2111918Stefano Morozzi01/2021
713215*25^80056+446111915Eric Chen10/2023
7133(34*10^111902-547)/9111903Robert Price03/2021
7134(10^111902+71)/9111902Serge Batalov07/2015
7135((3*85283-70250)*F(535399)-(85283-70250)*L(535399))/2111897Yaroslav Berezhko09/2025
7136(2^371625+1610)/2111870Stefano Morozzi09/2020
713729080^7027+7027^29080111865Hans Havermann01/2021
713831307^3730+3730^31307111820Hans Havermann02/2021
71392^371440-112865111815Enzo Doria06/2014
71402^371426-459161111811Enzo Doria05/2015
714125768^21771+21771^25768111779Hans Havermann02/2021
714228022^9747+9747^28022111777Hans Havermann02/2021
7143(94*10^111770+11)/3111772Robert Price04/2020
71442^371276-461267111766Enzo Doria07/2015
71456*10^111760+43111761Robert Price07/2020
714698079!4-1024111747Robert Price11/2019
7147(2^371186+3162)/2111738Stefano Morozzi09/2020
714810^(2*55862+1)-4*10^55862-1111725Robert Price07/2023
71492^371098-113261111712Enzo Doria07/2014
7150(7*10^111706-61)/9111706Erik Branger01/2011
71512^371044+1869391111696Enzo Doria05/2016
715226310^17581+17581^26310111688Hans Havermann01/2021
715388^57416+87111645Norbert Schneider11/2015
71542^370829-109693111631Enzo Doria04/2014
715515^94906-2111619Lelio R Paula11/2013
715625835^20904+20904^25835111614Hans Havermann02/2021
7157(2^370726+1198)/2111600Stefano Morozzi09/2020
715827758^10479+10479^27758111597Hans Havermann02/2021
71592^370695-4627111591Yves Minet05/2019
71607*10^111579-87111580Robert Price06/2020
71612^370643-37111575Yves Minet01/2012
7162(2^370655-5)/2439111575Lelio R Paula03/2014
71632^370610-3911111565Yves Minet04/2017
7164(154*10^111549+17)/9111551Robert Price06/2022
716526200^18097+18097^26200111550Hans Havermann01/2021
7166286^45405+45405^286111532Norbert Schneider04/2015
71674*5^159563-9111531Lelio R Paula11/2014
71685*10^111528-21111529Robert Price12/2021
7169(4^185225+23)/3111517Robert Price10/2018
71702^370393-2797093111500Enzo Doria03/2016
7171(21*2^370382-1)/629111495Lelio R Paula03/2014
7172(2^370371+554)/2111493Stefano Morozzi09/2020
71736^143273-5111489Paul Bourdelais01/2021
71742^370292-2791979111469Enzo Doria03/2016
7175(14*10^111443-11)/3111444Robert Price08/2022
71762^370177-461551111435Enzo Doria07/2015
7177(2^370169+1706)/2111432Stefano Morozzi09/2020
7178109^54683-108111413Norbert Schneider02/2017
7180(83*10^111406-173)/9111407Robert Price04/2021
7179959^37362-37362^959111407Henri Lifchitz10/2024
7181(2^370043+1010)/2111394Stefano Morozzi09/2020
718232961^2396+2396^32961111392Hans Havermann10/2020
7183numbpart(10^10+76282)111391Serge Batalov04/2015
7184(19*10^111385+11)/3111386Robert Price07/2023
7185(23*10^111380-29)/3111381Robert Price03/2022
71862^369974+733111374Lelio R Paula05/2013
7187121^53470+120111367Norbert Schneider10/2018
71882^369915-286267111356Enzo Doria07/2015
7189(62*10^111347-629)/9111348Robert Price07/2021
71902^369855-1615111338Lelio R Paula05/2017
71917*10^111325+3111326Robert Price08/2015
719251^65176+2111293Lelio R Paula08/2013
7193Phi(43329,-43329)111283Henri Lifchitz06/2025
71942^369643-1865767111274Enzo Doria03/2016
71952^369603+885111262Lelio R Paula05/2017
719625555^22564+22564^25555111252Hans Havermann10/2020
7197F(532391)/89441689/1425422598617111243Serge Batalov07/2024
7198L(532277)111240Renaud Lifchitz03/2004
7199105^55033-2111233Lelio R Paula10/2017
7200(35*10^111232-737)/9111233Robert Price07/2018
720126970^13307+13307^26970111227Hans Havermann10/2020
720225419^23716+23716^25419111210Hans Havermann10/2020
7203(26^78593-3^78593)/23111206Robert Price02/2025
72049*10^111201-29111202Robert Price09/2019
72052^369392+29835111199Lelio R Paula05/2017
72063^233059+16111198Robert Price03/2020
72072^369354-3413111187Yves Minet12/2016
72082^369296-27111170Lelio R Paula02/2013
7209(2468^40960+1)/(2468^8192+1)111161Martin Hopf08/2024
72102^369239-109837111153Enzo Doria05/2014
72112^369224-291839111148Enzo Doria07/2015
72122^369216+2798881111146Enzo Doria04/2016
721326842^13817+13817^26842111137Hans Havermann11/2020
7214(5*10^111119-191)/3111120Robert Price05/2021
7215(29*10^111112-23)/3111113Robert Price03/2022
721610^111111+163849111112Patrick De Geest03/2017
721710^111111-312911111111Patrick De Geest03/2017
72182^369092-216923111108Enzo Doria05/2014
72192^369081-55111105Lelio R Paula02/2013
7220(2^369047+3618)/2111094Stefano Morozzi09/2020
722188^57124-87111077Norbert Schneider11/2015
72222^368980+753111075Lelio R Paula05/2013
72232^368946-3623111064Yves Minet03/2017
72242^368929+29835111059Lelio R Paula05/2017
72254^184463-3^184463111058Jean-Louis Charton12/2004
7226111^54298+110111057Norbert Schneider04/2017
7227(4*10^111032-7)/3111033Ray Chandler04/2011
7228(29*10^111020-41)/3111021Tyler Busby03/2024
722935799^1262+1262^35799111015Hans Havermann10/2020
7230(298*10^111004+11)/3111006Robert Price11/2020
723127648^10349+10349^27648111004Hans Havermann11/2020
723228899^6932+6932^28899110997Hans Havermann11/2020
7233(749^38809+1)/(749^197+1)110990Martin Hopf11/2023
72342^368641-460303110972Enzo Doria06/2015
72352^368619-109087110966Enzo Doria04/2014
7236(74*10^110961+313)/9110962Robert Price06/2019
723725258^24711+24711^25258110956Hans Havermann11/2020
7238(2^368539+1290)/2110941Stefano Morozzi01/2021
72393*2^368489+7110927Lelio R Paula09/2014
7240(14*10^110922+61)/3110923Robert Price12/2018
724197411!4-2110913Robert Price07/2017
7242(301*10^110903+23)/9110905Robert Price06/2021
7243(9179*2^368330-1)/35110881Lelio R Paula05/2015
724425830^19619+19619^25830110880Hans Havermann10/2020
7245(34*10^110882-7)/9/13/29/1019374319110871Makoto Morimoto05/2016
724626022^18191+18191^26022110850Hans Havermann10/2020
7247(2^368211+2250)/2110843Stefano Morozzi01/2021
7248(37*10^110813+251)/9110814Robert Price09/2021
72492^368050-64875110795Lelio R Paula05/2017
72502^368048+25110794Lelio R Paula02/2013


Find by discoverer :


Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: December, 07 2025 14:23 (Time in France)

Go back
Valid XHTML 1.0!    Valid CSS!