PRP Records

Probable Primes Top 10000

(303330 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 ?
55012^446782-39701134495Enzo Doria09/2015
550231817^16858+16858^31817134485Hans Havermann12/2020
550332448^13937+13937^32448134471Hans Havermann12/2020
55045^192321+3^192321-1134427Jon Grantham08/2023
55052^446494-16485134409Enzo Doria04/2013
550630042^29785+29785^30042134408Hans Havermann12/2020
550729504^30069-30069^29504134405Norbert Schneider12/2014
55082^446441+65134393Lelio R Paula08/2017
5509(10^134385+719)/9134385Serge Batalov12/2014
551030043^29688+29688^30043134370Hans Havermann12/2020
5511(2*10^134364+529)/9134364Robert Price01/2018
551234657^7512+7512^34657134323Hans Havermann11/2020
5513(13*2^446187-1)/661134314Lelio R Paula07/2015
55145^192103+3^192103+2^192103+1134275Matthias Baur12/2019
551542035^1564+1564^42035134270Hans Havermann12/2020
5517(2^446022-7)/339134264Lelio R Paula07/2015
551630621^24248+24248^30621134264Hans Havermann12/2020
551830341^26562+26562^30341134237Hans Havermann11/2020
5519(189^58967-1)/188134234Anonymous06/2024
552010^134209+99867134210Patrick De Geest05/2021
552110^134209-80000001134209Robert Price04/2021
552210^134209-323283134209Patrick De Geest05/2021
552329976^29953+29953^29976134186Hans Havermann12/2020
552435038^6755+6755^35038134183Hans Havermann12/2020
552563^74568+2134174Lelio R Paula06/2017
55262^445671-22071134161Enzo Doria07/2013
5527532^49205+49205^532134129Norbert Schneider02/2019
552836453^4780+4780^36453134127Hans Havermann04/2021
5529(28*10^134122-1)/9134123Serge Batalov10/2014
55302^445515-113859134114Enzo Doria10/2014
5532(22*10^134111-37)/3134112Robert Price04/2019
553131083^20636+20636^31083134112Hans Havermann04/2021
55333*2^445478+5134103Jon Grantham07/2023
553431622^17379+17379^31622134079Hans Havermann04/2021
55355*2^445380-3134074Jon Grantham07/2023
5536(6*32^89076+4241)/31134073Eric Chen11/2023
5537(277*10^134059-7)/9134061Robert Price02/2022
55382^445328-216917134058Enzo Doria05/2014
55392^445202+1874899134020Enzo Doria06/2016
55405^191739-3^191739-1134020Jon Grantham08/2023
5541(35*10^134003-89)/9134004Robert Price02/2022
5542(13*2^445102+1)/17133989Lelio R Paula07/2015
5543(35*10^133979-593)/9133980Robert Price07/2018
55442*10^133955+51133956Robert Price05/2018
5545(49*10^133952+437)/9133953Robert Price09/2021
55462^444964-113639133948Enzo Doria08/2014
554731811^16240+16240^31811133943Hans Havermann04/2021
554810^133902+167841133903Patrick De Geest05/2021
555028118^30097-30097^28118133902Norbert Schneider01/2015
554910^133902-100001133902Robert Price07/2020
55512^444784-113859133894Enzo Doria10/2014
5552(132^63127-1)/131133864Anonymous06/2024
555332303^13914+13914^32303133846Hans Havermann04/2021
5554(29^91493-3^91493)/26133798Robert Price06/2025
5555(2276213*2^444444+1)/3133797Alex_soldier11/2022
5556(1403559*2^444444+1)/5133797Alex_soldier11/2022
5557(1209887*2^444444+1)/9133797Alex_soldier11/2022
5558(608239*2^444444+1)/25133796Alex_soldier11/2022
5559(1824587*2^444444+1)/27133796Alex_soldier11/2022
5560(40795*2^444444+1)/7133795Alex_soldier11/2022
556130739^22458+22458^30739133757Hans Havermann04/2021
556234942^6721+6721^34942133739Hans Havermann04/2021
5563(3^280229-1)/1120918133698Aurel Gibier03/2025
5564(2^444046+100280245065)133672Paul Bourdelais05/2022
556534792^6935+6935^34792133638Hans Havermann04/2021
5566(266*10^133603+1)/3133605Robert Price04/2020
556732261^13842+13842^32261133600Hans Havermann04/2021
5568(89*10^133580+1)/9133581Serge Batalov05/2010
5569(134*10^133573-11)/3133575Robert Price01/2022
557026726^30173-30173^26726133574Frank Doornink03/2024
55712^443721+39527133574Enzo Doria11/2024
557262^74521-61^74521133571Robert Price05/2013
5573(182*10^133543+1)/3133545Robert Price02/2020
5574(103*10^133535+11)/3133537Robert Price01/2021
557532589^12520+12520^32589133537Hans Havermann03/2021
55762^443590-431651133534Maxim Gerspach08/2026
5577L(638839)/274700771133502Serge Batalov07/2024
557834516^7373+7373^34516133496Hans Havermann04/2021
55798*10^133487-37133488Robert Price03/2022
558030135^26882+26882^30135133482Hans Havermann04/2021
55812^443198-1867301133416Enzo Doria03/2016
558227^93192+26133392Anonymous09/2024
5583(19*10^133390+101)/3133391Robert Price09/2019
5584(71^72043-1)/70133369Paul Bourdelais09/2017
5585(17508!^2+1)/(1453817*25094393)133366Michael Porter09/2025
558636117^4910+4910^36117133311Hans Havermann04/2021
55872^442799+1874633133296Enzo Doria06/2016
5588L(637751)133283Henri Lifchitz09/2008
5589109^65410-2133269Lelio R Paula10/2017
55902^442688-113489133263Enzo Doria08/2014
5591(7*2^442640-1)/783133246Lelio R Paula07/2015
5592(9*2^442463+1)/17441133192Lelio R Paula07/2015
55932^442437-1849993133187Enzo Doria08/2015
55942^442430-2791721133185Enzo Doria03/2016
5595(13*2^442428-1)/309133183Lelio R Paula07/2015
559629959^27870+27870^29959133172Hans Havermann03/2021
5597(25*2^442379-1)/71133169Lelio R Paula07/2015
55982^442368+213691133167Enzo Doria09/2023
559934240^7737+7737^34240133145Hans Havermann03/2021
5600452^50145+50145^452133142Norbert Schneider09/2020
5601(355^52201-1)/354133122Tom Wu08/2024
5602(3^278981-1)/14507014133101Paul Vanderveen05/2025
560330659^21796+21796^30659133011Hans Havermann04/2021
560433276^9935+9935^33276133010Hans Havermann04/2021
560530111^26122+26122^30111133001Hans Havermann04/2021
560630790^20869+20869^30790132998Hans Havermann04/2021
5608(2^441799+78557)/5132995Lelio R Paula07/2015
56078*10^132994-27132995Robert Price10/2021
5609(109*10^132992+11)/3132994Robert Price06/2022
56102^441781-2787883132990Enzo Doria03/2016
5611fibonacci(636232)+4132965Jon Grantham08/2023
5612(3*2^441685+1)/749132959Lelio R Paula07/2015
56132^441618+37132941Lelio R Paula08/2017
561434857^6514+6514^34857132940Hans Havermann04/2021
561534065^7988+7988^34065132937Hans Havermann04/2021
561635571^5452+5452^35571132914Hans Havermann04/2021
56172^441521-113575132912Enzo Doria08/2014
56187*10^132884-99132885Robert Price06/2019
561926987^29988-29988^26987132882Frank Doornink03/2024
5620(103*10^132879+17)/3132881Robert Price08/2020
56212^441396-65132874Lelio R Paula08/2017
562233350^9633+9633^33350132859Hans Havermann04/2021
56232^441330+1871959132854Enzo Doria05/2016
562425772^30111-30111^25772132825Frank Doornink02/2024
56252^441063+383132774Lelio R Paula06/2012
5626(10^132753+7)/17/19132751Alfred Reich06/2021
5627(22*10^132746+53)/3132747Robert Price07/2019
5628(77*10^132744-149)/9132745Robert Price03/2022
5629(22*10^132732+119)/3132733Robert Price04/2021
56302^440846+1870909132708Enzo Doria05/2016
5631(948^44579-1)/947132701Jinyuan Wang04/2023
56322^440656-113489132651Enzo Doria08/2014
5633numbpart(14180123587)132646Serge Batalov04/2017
563432950^10591+10591^32950132622Hans Havermann04/2021
563533302^9597+9597^33302132614Hans Havermann04/2021
5636(19*10^132550+191)/3132551Robert Price05/2019
5637(2^440399-1)/(16210820281161978209*31518475633*880799)132538Dario Alpern01/2015
5638(38^83891+1)/39132529Robert Price09/2013
56392*10^132493-43132494Robert Price04/2018
564031352^16809+16809^31352132480Hans Havermann04/2021
5641(418*10^132441+23)/9132443Robert Price02/2020
56422^439931-21132433Lelio R Paula08/2017
564347^79201-46^79201132432Robert Price10/2012
56442^439897-113653132423Enzo Doria08/2014
564535505^5362+5362^35505132410Hans Havermann03/2021
564630079^25222+25222^30079132402Hans Havermann04/2021
5647(5*2^439822+1)/9132400Lelio R Paula06/2015
5648(695*10^132356+7)/9132358Robert Price12/2021
5649(112*10^132337-1)/3132339Serge Batalov12/2014
56502^439576-113247132326Enzo Doria07/2014
5651(7^156589-1)/65346468774132323Paul Vanderveen05/2025
565230059^25230+25230^30059132318Hans Havermann04/2021
56532^439497-29143132302Enzo Doria07/2015
56542^439409-114193132276Enzo Doria12/2014
5655(39^83137+2^83137)/41132275Robert Price12/2024
5656(44*10^132233-233)/9132234Robert Price01/2019
565725507^30000-30000^25507132200Frank Doornink02/2024
56589*10^132148-7132149Robert Price09/2015
5659V(790390)132144Serge Batalov07/2024
5660(47*10^132125-119)/9132126Robert Price05/2019
56612^438900+214051132123Enzo Doria10/2023
56622^438845+1870217132106Enzo Doria05/2016
5663Phi(293229,-5)132106Henri Lifchitz02/2026
56642^438789+87855132089Lelio R Paula01/2016
56652^438774-2786411132085Enzo Doria03/2016
56662^438755-1848205132079Enzo Doria07/2015
566730502^21381+21381^30502132075Hans Havermann04/2021
56682^438739-112087132074Enzo Doria06/2014
5669(588859*29^90289-19)/28132043Eric Chen06/2025
5670(2^438438+100280245065)131983Paul Bourdelais05/2022
567135872^4777+4777^35872131979Hans Havermann04/2021
567231198^16945+16945^31198131938Hans Havermann03/2021
567313907#+(318259#)/(13907#)131923Makoto Morimoto10/2017
5674L(631181)131910Henri Lifchitz09/2008
5675(47*10^131886-119)/9131887Robert Price05/2019
56765*2^438096-3131881Jon Grantham07/2023
5677(3*2^438121+1)/4308193883131879Lelio R Paula06/2015
56782^438079-1863877131875Enzo Doria03/2016
5679(16*10^131872-37)/3131873Robert Price05/2021
5680(2^438067+5)/329131869Lelio R Paula06/2015
56812^437908-113855131824Enzo Doria09/2014
56822^437884-286349131817Enzo Doria07/2015
568315^112072+14131807Alfred Reich10/2023
56845^188558+4131797Tyler NeSmith05/2021
5685(11*10^131784-17)/3131785Robert Price06/2018
5686(166^59357-1)/165131777Anonymous06/2024
56874*10^131719-93131720Robert Price07/2020
568831629^14606+14606^31629131720Hans Havermann04/2021
56893^276062-112292131716Enzo Doria07/2014
56902^437539+2025131713Henri Lifchitz01/2025
569111*31^88313+322688131708Eric Chen05/2024
5692(7*10^131682+89)/3131683Robert Price08/2020
569329512^28969+28969^29512131681Hans Havermann03/2021
56942^437343+75953131654Enzo Doria04/2016
569535^85243-34^85243131621Robert Price05/2012
5696(28*10^131586+59)/3131587Robert Price05/2021
5697(59*10^131575+391)/9131576Robert Price03/2021
5698Phi(51051,-17#)131513Henri Lifchitz12/2025
569939984^1945+1945^39984131505Hans Havermann03/2021
570025842^29801-29801^25842131492Frank Doornink03/2024
570128592^29505-29505^28592131482Frank Doornink05/2024
570225647^29818-29818^25647131469Frank Doornink02/2024
5703(203*10^131457+1)/3131459Robert Price03/2020
57047*10^131421-41131422Robert Price08/2021
570587309^32+32^87309131414Hans Havermann03/2021
5706(68^71713+1)/69131413Paul Bourdelais09/2017
57072^436521+224885131406Enzo Doria07/2024
5708(650*10^131391+43)/9131393Tyler Busby01/2023
57092^436451+1884713131385Enzo Doria03/2017
57102^436365+35131359Robert Price11/2015
57122^436300+1866871131340Enzo Doria03/2016
5711(7*10^131339+179)/3131340Robert Price09/2018
571314^114592-3131338Paul Bourdelais12/2020
571436197^4236+4236^36197131285Hans Havermann04/2021
5715(37*10^131270+341)/9131271Robert Price08/2018
571629863^24790+24790^29863131227Hans Havermann03/2021
5717(5*10^131223-29)/3131224Robert Price03/2018
571829524^27825+27825^29524131218Hans Havermann03/2021
5719(23*2^435891-1)/699131215Lelio R Paula07/2015
5720(11*2^435879+1)/3337131211Lelio R Paula06/2015
572130639^19136+19136^30639131192Hans Havermann04/2021
5722(2^435808+1)/641/6700417131182Lelio R Paula02/2012
5723(2^435808+1)/4294967297131182Serge Batalov12/2016
57242^435773+1875557131181Enzo Doria06/2016
5726(16*10^131180+167)/3131181Robert Price06/2019
5725(26*10^131180-77)/3131181Robert Price11/2019
5727(25*10^131144-7)/9131145Robert Price05/2018
572829299^29358-29358^29299131138Norbert Schneider03/2022
57292^435612-2789939131133Enzo Doria12/2015
573033976^7231+7231^33976131121Hans Havermann03/2021
573133715^7746+7746^33715131121Hans Havermann03/2021
573266^72047-65^72047131093Robert Price09/2013
5733(5*10^131090+37)/3131091Robert Price03/2018
57342^435468+75631131089Enzo Doria04/2016
573537^83588-2131083Lelio R Paula08/2015
5736(4^217720+11)/3131081Robert Price02/2017
573730407^20448+20448^30407131074Hans Havermann04/2021
5738(22*10^131070+179)/3131071Robert Price02/2022
573928831^29388-29388^28831131067Frank Doornink05/2024
574029487^27836+27836^29487131059Hans Havermann04/2021
574129962^23615+23615^29962131030Hans Havermann03/2021
57422^435202-113193131009Enzo Doria07/2014
574341705^1384+1384^41705131002Hans Havermann04/2021
57449*10^130998-19130999Robert Price07/2019
574536243^4108+4108^36243130969Hans Havermann04/2021
5746(32^86981-5^86981)/27130919Robert Price04/2026
5747(445^49433+1)/446130914Jinyuan Wang05/2024
5748floor((sqrt(5)-1)/2*10^130911)130911Serge Batalov06/2017
57492^434835-111937130899Enzo Doria05/2014
5750(62*10^130895-629)/9130896Robert Price07/2021


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Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: August, 27 2026 07:10 (Time in France)

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