PRP Records

Probable Primes Top 10000

(295107 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 ?
4251(2276213*2^444444+1)/3133797Alex_soldier11/2022
4252(1403559*2^444444+1)/5133797Alex_soldier11/2022
4253(1209887*2^444444+1)/9133797Alex_soldier11/2022
4254(608239*2^444444+1)/25133796Alex_soldier11/2022
4255(1824587*2^444444+1)/27133796Alex_soldier11/2022
4256(40795*2^444444+1)/7133795Alex_soldier11/2022
425730739^22458+22458^30739133757Hans Havermann04/2021
425834942^6721+6721^34942133739Hans Havermann04/2021
4259(2^444046+100280245065)133672Paul Bourdelais05/2022
426034792^6935+6935^34792133638Hans Havermann04/2021
4261(266*10^133603+1)/3133605Robert Price04/2020
426232261^13842+13842^32261133600Hans Havermann04/2021
4263(89*10^133580+1)/9133581Serge Batalov05/2010
4264(134*10^133573-11)/3133575Robert Price01/2022
426526726^30173-30173^26726133574Frank Doornink03/2024
426662^74521-61^74521133571Robert Price05/2013
4267(182*10^133543+1)/3133545Robert Price02/2020
4268(103*10^133535+11)/3133537Robert Price01/2021
426932589^12520+12520^32589133537Hans Havermann03/2021
427034516^7373+7373^34516133496Hans Havermann04/2021
42718*10^133487-37133488Robert Price03/2022
427230135^26882+26882^30135133482Hans Havermann04/2021
42732^443198-1867301133416Enzo Doria03/2016
4274(19*10^133390+101)/3133391Robert Price09/2019
4275(71^72043-1)/70133369Paul Bourdelais09/2017
427636117^4910+4910^36117133311Hans Havermann04/2021
42772^442799+1874633133296Enzo Doria06/2016
4278L(637751)133283Henri Lifchitz09/2008
4279109^65410-2133269Lelio R Paula10/2017
42802^442688-113489133263Enzo Doria08/2014
4281(7*2^442640-1)/783133246Lelio R Paula07/2015
4282(9*2^442463+1)/17441133192Lelio R Paula07/2015
42832^442437-1849993133187Enzo Doria08/2015
42842^442430-2791721133185Enzo Doria03/2016
4285(13*2^442428-1)/309133183Lelio R Paula07/2015
428629959^27870+27870^29959133172Hans Havermann03/2021
4287(25*2^442379-1)/71133169Lelio R Paula07/2015
42882^442368+213691133167Enzo Doria09/2023
428934240^7737+7737^34240133145Hans Havermann03/2021
4290452^50145+50145^452133142Norbert Schneider09/2020
429130659^21796+21796^30659133011Hans Havermann04/2021
429233276^9935+9935^33276133010Hans Havermann04/2021
429330111^26122+26122^30111133001Hans Havermann04/2021
429430790^20869+20869^30790132998Hans Havermann04/2021
4296(2^441799+78557)/5132995Lelio R Paula07/2015
42958*10^132994-27132995Robert Price10/2021
4297(109*10^132992+11)/3132994Robert Price06/2022
42982^441781-2787883132990Enzo Doria03/2016
4299fibonacci(636232)+4132965Jon Grantham08/2023
4300(3*2^441685+1)/749132959Lelio R Paula07/2015
43012^441618+37132941Lelio R Paula08/2017
430234857^6514+6514^34857132940Hans Havermann04/2021
430334065^7988+7988^34065132937Hans Havermann04/2021
430435571^5452+5452^35571132914Hans Havermann04/2021
43052^441521-113575132912Enzo Doria08/2014
43067*10^132884-99132885Robert Price06/2019
430726987^29988-29988^26987132882Frank Doornink03/2024
4308(103*10^132879+17)/3132881Robert Price08/2020
43092^441396-65132874Lelio R Paula08/2017
431033350^9633+9633^33350132859Hans Havermann04/2021
43112^441330+1871959132854Enzo Doria05/2016
431225772^30111-30111^25772132825Frank Doornink02/2024
43132^441063+383132774Lelio R Paula06/2012
4314(10^132753+7)/17/19132751Alfred Reich06/2021
4315(22*10^132746+53)/3132747Robert Price07/2019
4316(77*10^132744-149)/9132745Robert Price03/2022
4317(22*10^132732+119)/3132733Robert Price04/2021
43182^440846+1870909132708Enzo Doria05/2016
4319(948^44579-1)/947132701Jinyuan Wang04/2023
43202^440656-113489132651Enzo Doria08/2014
4321numbpart(14180123587)132646Serge Batalov04/2017
432232950^10591+10591^32950132622Hans Havermann04/2021
432333302^9597+9597^33302132614Hans Havermann04/2021
4324(19*10^132550+191)/3132551Robert Price05/2019
4325(2^440399-1)/(16210820281161978209*31518475633*880799)132538Dario Alpern01/2015
4326(38^83891+1)/39132529Robert Price09/2013
43272*10^132493-43132494Robert Price04/2018
432831352^16809+16809^31352132480Hans Havermann04/2021
4329(418*10^132441+23)/9132443Robert Price02/2020
43302^439931-21132433Lelio R Paula08/2017
433147^79201-46^79201132432Robert Price10/2012
43322^439897-113653132423Enzo Doria08/2014
433335505^5362+5362^35505132410Hans Havermann03/2021
433430079^25222+25222^30079132402Hans Havermann04/2021
4335(5*2^439822+1)/9132400Lelio R Paula06/2015
4336(695*10^132356+7)/9132358Robert Price12/2021
4337(112*10^132337-1)/3132339Serge Batalov12/2014
43382^439576-113247132326Enzo Doria07/2014
433930059^25230+25230^30059132318Hans Havermann04/2021
43402^439497-29143132302Enzo Doria07/2015
43412^439409-114193132276Enzo Doria12/2014
4342(44*10^132233-233)/9132234Robert Price01/2019
434325507^30000-30000^25507132200Frank Doornink02/2024
43449*10^132148-7132149Robert Price09/2015
4345(47*10^132125-119)/9132126Robert Price05/2019
43462^438900+214051132123Enzo Doria10/2023
43472^438845+1870217132106Enzo Doria05/2016
43482^438789+87855132089Lelio R Paula01/2016
43492^438774-2786411132085Enzo Doria03/2016
43502^438755-1848205132079Enzo Doria07/2015
435130502^21381+21381^30502132075Hans Havermann04/2021
43522^438739-112087132074Enzo Doria06/2014
4353(2^438438+100280245065)131983Paul Bourdelais05/2022
435435872^4777+4777^35872131979Hans Havermann04/2021
435531198^16945+16945^31198131938Hans Havermann03/2021
435613907#+(318259#)/(13907#)131923Makoto Morimoto10/2017
4357L(631181)131910Henri Lifchitz09/2008
4358(47*10^131886-119)/9131887Robert Price05/2019
43595*2^438096-3131881Jon Grantham07/2023
4360(3*2^438121+1)/4308193883131879Lelio R Paula06/2015
43612^438079-1863877131875Enzo Doria03/2016
4362(16*10^131872-37)/3131873Robert Price05/2021
4363(2^438067+5)/329131869Lelio R Paula06/2015
43642^437908-113855131824Enzo Doria09/2014
43652^437884-286349131817Enzo Doria07/2015
436615^112072+14131807Alfred Reich10/2023
43675^188558+4131797Tyler NeSmith05/2021
4368(11*10^131784-17)/3131785Robert Price06/2018
43704*10^131719-93131720Robert Price07/2020
436931629^14606+14606^31629131720Hans Havermann04/2021
43713^276062-112292131716Enzo Doria07/2014
4372(7*10^131682+89)/3131683Robert Price08/2020
437329512^28969+28969^29512131681Hans Havermann03/2021
43742^437343+75953131654Enzo Doria04/2016
437535^85243-34^85243131621Robert Price05/2012
4376(28*10^131586+59)/3131587Robert Price05/2021
4377(59*10^131575+391)/9131576Robert Price03/2021
437839984^1945+1945^39984131505Hans Havermann03/2021
437925842^29801-29801^25842131492Frank Doornink03/2024
438028592^29505-29505^28592131482Frank Doornink05/2024
438125647^29818-29818^25647131469Frank Doornink02/2024
4382(203*10^131457+1)/3131459Robert Price03/2020
43837*10^131421-41131422Robert Price08/2021
438487309^32+32^87309131414Hans Havermann03/2021
4385(68^71713+1)/69131413Paul Bourdelais09/2017
4386(650*10^131391+43)/9131393Tyler Busby01/2023
43872^436451+1884713131385Enzo Doria03/2017
43882^436365+35131359Robert Price11/2015
43902^436300+1866871131340Enzo Doria03/2016
4389(7*10^131339+179)/3131340Robert Price09/2018
439114^114592-3131338Paul Bourdelais12/2020
439236197^4236+4236^36197131285Hans Havermann04/2021
4393(37*10^131270+341)/9131271Robert Price08/2018
439429863^24790+24790^29863131227Hans Havermann03/2021
4395(5*10^131223-29)/3131224Robert Price03/2018
439629524^27825+27825^29524131218Hans Havermann03/2021
4397(23*2^435891-1)/699131215Lelio R Paula07/2015
4398(11*2^435879+1)/3337131211Lelio R Paula06/2015
439930639^19136+19136^30639131192Hans Havermann04/2021
4400(2^435808+1)/641/6700417131182Lelio R Paula02/2012
4401(2^435808+1)/4294967297131182Serge Batalov12/2016
44022^435773+1875557131181Enzo Doria06/2016
4404(16*10^131180+167)/3131181Robert Price06/2019
4403(26*10^131180-77)/3131181Robert Price11/2019
4405(25*10^131144-7)/9131145Robert Price05/2018
440629299^29358-29358^29299131138Norbert Schneider03/2022
44072^435612-2789939131133Enzo Doria12/2015
440833976^7231+7231^33976131121Hans Havermann03/2021
440933715^7746+7746^33715131121Hans Havermann03/2021
441066^72047-65^72047131093Robert Price09/2013
4411(5*10^131090+37)/3131091Robert Price03/2018
44122^435468+75631131089Enzo Doria04/2016
441337^83588-2131083Lelio R Paula08/2015
4414(4^217720+11)/3131081Robert Price02/2017
441530407^20448+20448^30407131074Hans Havermann04/2021
4416(22*10^131070+179)/3131071Robert Price02/2022
441728831^29388-29388^28831131067Frank Doornink05/2024
441829487^27836+27836^29487131059Hans Havermann04/2021
441929962^23615+23615^29962131030Hans Havermann03/2021
44202^435202-113193131009Enzo Doria07/2014
442141705^1384+1384^41705131002Hans Havermann04/2021
44229*10^130998-19130999Robert Price07/2019
442336243^4108+4108^36243130969Hans Havermann04/2021
4424floor((sqrt(5)-1)/2*10^130911)130911Serge Batalov06/2017
44252^434835-111937130899Enzo Doria05/2014
4426(62*10^130895-629)/9130896Robert Price07/2021
44272^434685+72257130854Enzo Doria04/2016
4428(7*10^130825+113)/3130826Robert Price02/2018
44292^434539-29317130810Enzo Doria07/2015
4430(74*10^130791+637)/9130792Robert Price01/2022
44312^434469-114259130789Enzo Doria01/2015
4432(5*10^130763+103)/9130763Robert Price04/2022
44332^434246+33130722Robert Price11/2015
443430156^21599+21599^30156130710Hans Havermann04/2021
4435(17*10^130695-161)/9130695Robert Price02/2021
443630513^19148+19148^30513130661Hans Havermann03/2021
443729736^24761+24761^29736130654Hans Havermann04/2021
44389*10^130638+41130639Robert Price08/2020
44392^433911-91130621Lelio R Paula06/2017
444030786^17449+17449^30786130588Hans Havermann03/2021
44412^433744-114419130570Enzo Doria02/2015
44432^433708+1869451130560Enzo Doria05/2016
44422^433710+93130560Lelio R Paula06/2017
44447*10^130535-27130536Robert Price11/2022
4445(9629^32768+1)/120501441265666130520Kellen Shenton05/2021
4446804*34^85220+713130516Eric Chen08/2023
4447(29*2^433547-1)/27130511Lelio R Paula06/2015
44483^273521+10130503Tyler NeSmith01/2021
444941659^1356+1356^41659130487Hans Havermann03/2021
44504*10^130480+9130481Robert Price05/2015
4451(23*2^433449-1)/75130481Lelio R Paula06/2015
44523*2^433422+5130474Jon Grantham07/2023
4453(23*2^433334-1)/3731130445Lelio R Paula06/2015
4454(31*10^130414-49)/9130415Robert Price11/2021
445526462^29485-29485^26462130402Frank Doornink03/2024
445633481^7848+7848^33481130401Hans Havermann03/2021
4457(17*10^130393+7)/3130394Robert Price06/2023
4458(22*10^130392+203)/9130393Robert Price10/2021
445929773^23950+23950^29773130386Hans Havermann04/2021
44602^433023-113497130353Enzo Doria08/2014
446131175^15178+15178^31175130350Hans Havermann04/2021
44622^433002+1179379130347Enzo Doria06/2016
44632^432974+19130339Robert Price08/2015
446431903^12168+12168^31903130331Hans Havermann04/2021
44652^432917+22217130322Enzo Doria09/2023
446629387^27112+27112^29387130278Hans Havermann04/2021
44672^432768+213181130277Enzo Doria09/2023
446829577^25370+25370^29577130267Hans Havermann04/2021
446931738^12685+12685^31738130231Hans Havermann03/2021
447044235^878+878^44235130206Hans Havermann04/2021
447132160^11171+11171^32160130187Hans Havermann04/2021
447229489^25956+25956^29489130172Hans Havermann04/2021
4473(2^432457-1)/1672739247834685086279697130159Tony Prest / Never Odd Or Even09/2013
447433005^8766+8766^33005130133Hans Havermann04/2021
4475(35*10^130132-611)/9130133Robert Price02/2022
4476(444^49408+1)/(444^256+1)130125Martin Hopf12/2023
44772^432217+41130111Lelio R Paula06/2017
4478(2^216089*(2^216091-1)-339)/25130098Makoto Morimoto03/2017
4479((2^216091+1066)^2+(2^216091+1066)+41)/47/2069130095Makoto Morimoto05/2016
448097^65480-2130094Lelio R Paula05/2017
448136007^4102+4102^36007130094Hans Havermann04/2021
44824*10^130088-89130089Robert Price11/2018
44832^432117-113215130081Enzo Doria07/2014
4484(4*10^130080+41)/9130080Serge Batalov11/2022
44852^431804+72511129986Enzo Doria04/2016
448627902^29237-29237^27902129978Frank Doornink03/2024
4487(2313^38809-1)/(2313^197-1)129898Ryan Propper11/2023
4488(13*10^129896+137)/3129897Robert Price06/2021
4489(13*10^129890+71)/3129891Robert Price06/2021
449029048^29101-29101^29048129882Norbert Schneider03/2022
449137832^2709+2709^37832129871Hans Havermann04/2021
449231055^15184+15184^31055129853Hans Havermann04/2021
4493(3^272141-3^136071+1)/7129844Serge Batalov03/2014
449431385^13702+13702^31385129833Hans Havermann04/2021
4495(13*10^129826+41)/9129827Tyler Busby02/2023
449628901^29102-29102^28901129822Norbert Schneider03/2022
4497(47*10^129789-119)/9129790Robert Price05/2019
4498(9*2^431141+1)/17129787Lelio R Paula06/2015
449925999^29384-29384^25999129730Frank Doornink03/2024
450025771^29408-29408^25771129723Frank Doornink02/2024


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Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: May, 05 2024 11:19 (Time in France)

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