PRP Records

Probable Primes Top 10000

(303439 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 ?
45012^504212-461939151783Enzo Doria07/2015
45027*10^151772-41151773Robert Price08/2021
4503(47^90749-4^90749)/43151740Robert Price12/2025
45042^504054-2231151736Yves Minet10/2011
450525237^34458-34458^25237151686Frank Doornink11/2023
4506(28*10^151682+191)/3151683Robert Price02/2020
45072^503817+23961151665Enzo Doria10/2023
45082^503475-933075151562Paul Bourdelais06/2021
45092^503371+26289151530Enzo Doria12/2023
45102^503361-39883151527Enzo Doria09/2015
45112^503225+382667151486Enzo Doria10/2016
4512(206*10^151483-11)/3151485Robert Price02/2022
4513(844*10^151396-7)/9151398Robert Price05/2021
4514(26*10^151391-503)/9151392Robert Price07/2018
45152^502769+1877567151349Enzo Doria08/2016
4516526*27^105731+13151343Eric Chen10/2026
45172^502576-4019151291Yves Minet10/2011
45185*10^151257+41151258Robert Price03/2019
45192^502290-2792501151205Enzo Doria02/2016
452017015^35734+35734^17015151185Norbert Schneider12/2025
45212^502181+1868417151172Enzo Doria04/2016
45222^502055+22583151134Enzo Doria09/2023
4523(3*23^110967+41)/22151106Anonymous12/2023
45246*10^151063-77151064Robert Price09/2021
45252^501781-1850503151052Enzo Doria08/2015
4526(2^82589933-1)%(10^151020)151020Anonymous05/2025
4527(5*10^151007+37)/3151008Robert Price03/2018
45283^316494+5*2^316494151007Jon Grantham08/2023
45292^501627-991151005Yves Minet02/2014
45302^501577-115333150990Enzo Doria07/2015
453125239^34298-34298^25239150983Frank Doornink12/2023
4532(19*10^150977-7)/3150978Robert Price12/2023
45338*10^150975+3150976Robert Price08/2015
45342^501512-113669150971Enzo Doria09/2014
453534180^26101+26101^34180150962Norman Luhn04/2024
4536U(1083477)/2166953150949Serge Batalov07/2024
4537(83*10^150908+493)/9150909Robert Price12/2021
453836267^14482+14482^36267150901Norman Luhn04/2024
45392*10^150818+83150819Robert Price12/2021
454048753^1240+1240^48753150814Norman Luhn04/2024
4541(12^139739+1)/13150803Paul Bourdelais09/2011
4542(31^101111-1)/30150792Alexander Zhirkov11/2010
45432^500899-500899150786Henri Lifchitz04/2005
45442^500832+1876801150766Enzo Doria07/2016
4545(23*10^150763-59)/9150764Robert Price05/2018
454646002^1891+1891^46002150735Norman Luhn04/2024
454732001^33458-33458^32001150734Frank Doornink01/2024
45482^500699+1884953150726Enzo Doria02/2017
4549(13*10^150675-37)/3150676Robert Price01/2019
4550(2^500527+lucasV(1,2,500527)+1)/4150674Mike Oakes11/2016
455135365^18204+18204^35365150661Norman Luhn05/2024
45522^500337-71101150617Enzo Doria04/2016
4553(74*10^150616+133)/9150617Robert Price06/2019
4554(2*10^150612-17)/3150612Serge Batalov11/2022
45554*10^150577+91150578Robert Price08/2018
45565649^40132+40132^5649150575Norbert Schneider04/2024
45572^500160+80071150564Enzo Doria06/2016
4558(2^500120+5)/9150551Lelio R Paula12/2017
4560(43*10^150515-421)/9150516Robert Price01/2019
45594695^40994+40994^4695150516Norbert Schneider11/2023
45612^499999+15981150515Norman Luhn08/2023
4563(10^150551-1)/9/385207015049/57498437921/7808738631274081150512Maksym Voznyy08/2014
4562(10^150551-1)/1556587827131683185788921941743157225041150512Robert Price07/2016
456426614^34005-34005^26614150476Frank Doornink03/2024
45652^499861-29503150474Enzo Doria08/2015
4566Phi(64793,-7#)150462Henri Lifchitz12/2025
45672^499653-113533150411Enzo Doria08/2014
4568(14*10^150391-191)/3150392Robert Price10/2020
456929033^33696+33696^29033150382Norbert Schneider10/2023
45702^499534-221150375Yves Minet06/2012
457130110^33567+33567^30110150337Norbert Schneider10/2023
457226212^34023-34023^26212150331Frank Doornink03/2024
4573(28*10^150294+41)/3150295Robert Price07/2021
45742^499225+49727150282Enzo Doria09/2016
4575(695*10^150274+7)/9150276Robert Price12/2021
45762^499054-29261150231Enzo Doria07/2015
457718580^35187+35187^18580150215Norbert Schneider10/2023
4578(844*10^150196-7)/9150198Robert Price05/2021
45792^498907-933075150186Paul Bourdelais06/2021
4581(2^498898-7)/9150183Lelio R Paula10/2015
45803*10^150182+17150183Robert Price07/2018
45825*10^150175+63150176Robert Price09/2020
458329273^33618-33618^29273150154Frank Doornink06/2024
458432363^33292+33292^32363150149Norbert Schneider07/2022
458532^99753-99753^32150144Henri Lifchitz08/2024
4586(77*10^150128+67)/9150129Robert Price12/2021
4587(7*10^(2*75062+1)-9*10^75062-7)/9150125Robert Price12/2023
45882^498623+1866983150101Enzo Doria03/2016
458933194^33194-213^213150073Serge Batalov04/2024
459027868^33759-33759^27868150063Frank Doornink06/2024
4591(25*10^150050-403)/9150051Robert Price12/2020
4592numbpart(18140942830)150033Serge Batalov04/2017
459310^150029+4381150030Patrick De Geest05/2016
459410^150029-41150029Serge Batalov12/2014
459533185^33185+618^618150028Serge Batalov04/2024
45969*34^97952+529150013Eric Chen08/2023
459710^150000+1158603150001Patrick De Geest09/2018
459810^150000-245703150000Patrick De Geest09/2018
4599(38*10^149999+691)/9150000Robert Price10/2018
46002043563126843649194^8192+2043563126843649185^8192150000Youcef Lemsafer01/2023
4601(2043563126843649232^8192+2043563126843649201^8192)/147457149994Youcef Lemsafer01/2023
46022^498238-53149985Lelio R Paula12/2017
460345728^1905+1905^45728149984Hans Havermann10/2020
4604(211^65024+1)/(211^512+1)149945Martin Hopf12/2023
46055*10^149907+23149908Robert Price03/2019
460632^99585-829149891Eric Chen11/2023
460739347^6442+6442^39347149874Hans Havermann09/2020
46082^497850+81049149868Enzo Doria07/2016
4609V(1075416)149830Serge Batalov07/2024
461037228^10575+10575^37228149816Hans Havermann10/2020
4611(5*2^497673+1)/2743149812Lelio R Paula10/2015
4612(5*2^497671+1)/373703149810Lelio R Paula10/2015
4613(2*10^149803-143)/3149803Robert Price03/2018
461433845^26604+26604^33845149763Hans Havermann09/2020
46152^497434-2784191149743Enzo Doria10/2015
4616(865*10^149737-1)/9149739Robert Price04/2020
461710^149695-7000001149695Robert Price06/2021
461838237^8214+8214^38237149681Hans Havermann09/2020
4619Phi(745791,2)/1491583149664Anonymous03/2025
4620(497167*2^497167-1)/70975149664Anonymous04/2025
4621(23*10^149655+19)/3149656Robert Price07/2019
46222^497068-113579149633Enzo Doria08/2014
46232^497037+73727149624Enzo Doria04/2016
462411*10^149618+3149620Robert Price07/2021
462534942^19067+19067^34942149562Hans Havermann09/2020
462633696^27449+27449^33696149561Hans Havermann09/2020
46272^496773+77747149544Enzo Doria05/2016
462829937^33400-33400^29937149506Frank Doornink06/2024
4629(7*10^149483-493)/9149483Robert Price04/2021
4630(206*10^149459+7)/3149461Robert Price07/2020
463134589^20940+20940^34589149459Hans Havermann09/2020
46322^496477-113485149455Enzo Doria08/2014
4633(496423*2^496423-1)/223573149439Anonymous04/2025
46343*2^496411-5149436Jon Grantham07/2023
4635((10^74703-1)*10000/9+7481)*10^74703+(10^74703-1)/9149410Hans Havermann09/2019
46362^496270-49451149393Enzo Doria10/2015
46372^496238-1865081149383Enzo Doria01/2016
463833831^26030+26030^33831149380Hans Havermann09/2020
463934131^23780+23780^34131149365Hans Havermann09/2020
4640(5*10^149335-53)/3149336Robert Price09/2020
464126043^33818-33818^26043149330Frank Doornink03/2024
46422^495968-1853699149302Enzo Doria09/2015
46432^495935-4117149292Yves Minet02/2018
46445*2^495930+3149291Jon Grantham07/2023
464535816^14709+14709^35816149267Hans Havermann09/2020
4646(10^149264+7)/191/2683/80557149254Alfred Reich07/2021
46473^312800+6560149244Alfred Reich04/2026
464810^149240-40000001149240Robert Price07/2022
464910^149240-10809149240Alfred Reich08/2024
46502^495712-396765149225Enzo Doria07/2013
4651(21*2^495676-1)/4835149211Lelio R Paula10/2015
46522^495420+1880701149137Enzo Doria10/2016
465325646^33823-33823^25646149127Frank Doornink02/2024
46542^495337-1847293149112Enzo Doria07/2015
4655(2^495193-7)/5149068Lelio R Paula10/2015
46562^495163+111546435149059Paul Bourdelais10/2021
465733282^30097+30097^33282149055Hans Havermann09/2020
465837384^9705+9705^37384149050Hans Havermann09/2020
465934808^19143+19143^34808149049Hans Havermann09/2020
4660413^56963-412^56963149013Jean-Louis Charton08/2012
466130657^33212-33212^30657149007Frank Doornink06/2024
466247^89113-46^89113149006Robert Price10/2012
4663V(891190)148997Serge Batalov07/2024
46642^494916+87855148985Lelio R Paula01/2016
46656*10^148982+73148983Robert Price04/2019
46663^312155-4148936Anonymous02/2023
466710^148934+1530019148935Patrick De Geest02/2021
466810^148934-1000000001148934Robert Price11/2020
466910^148934-512057148934Patrick De Geest02/2021
467039000^6571+6571^39000148888Hans Havermann10/2020
46712^494586-2791991148886Enzo Doria02/2016
4672Phi(117375,3^5)148862Henri Lifchitz12/2025
46738*10^148860-3148861Ray Chandler04/2011
467438262^7769+7769^38262148854Hans Havermann10/2020
467510^148816-500001148816Robert Price03/2022
4676(53*10^148811-287)/9148812Robert Price02/2022
46772^494333-286183148810Enzo Doria06/2015
46782^494144-264119148753Enzo Doria05/2014
46796*10^148734+47148735Robert Price06/2022
468028724^33353-33353^28724148696Frank Doornink06/2024
468136502^11823+11823^36502148663Hans Havermann11/2020
4682(5*2^493838-1)/3721148658Lelio R Paula10/2015
468364239^206+206^64239148641Hans Havermann10/2020
4684(23*2^493761-1)/555148636Lelio R Paula10/2015
4685(23*10^148627-137)/3148628Robert Price08/2021
4686(151*10^148601-1)/3148603Robert Price03/2020
46872^493636+82081148600Enzo Doria09/2016
4688((((((((((((((34251^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2148593Serge Batalov07/2016
468927134^33509-33509^27134148563Frank Doornink01/2024
4690177487#+(519643#)/(177487#)148558Makoto Morimoto11/2017
4691(2*10^148460-23)/3148460Robert Price04/2018
4692(28*10^148445+101)/3148446Robert Price09/2020
46932^493065+225148428Henri Lifchitz11/2024
469436203^12556+12556^36203148391Hans Havermann10/2020
469533912^23749+23749^33912148387Hans Havermann10/2020
4696(8*10^148328+1)/9148328Serge Batalov05/2010
469734294^21117+21117^34294148309Hans Havermann10/2020
4698(71*10^148306-539)/9148307Robert Price07/2019
469930814^33039-33039^30814148304Frank Doornink06/2024
470038042^7875+7875^38042148222Hans Havermann10/2020
47015^211959-12874148153Enzo Doria05/2014
470234142^21831+21831^34142148145Hans Havermann10/2020
4703(288*21^112023-13)/5148121Eric Chen03/2026
470410^148112+34059148113Patrick De Geest05/2021
470510^148112-70000001148112Robert Price03/2021
470610^148112-106593148112Patrick De Geest05/2021
470736303^12016+12016^36303148108Hans Havermann10/2020
4708(77*10^148089-149)/9148090Robert Price03/2022
4709(16*10^148071+41)/3148072Robert Price03/2019
4710187^65175-2148068Lelio R Paula11/2017
47112^491851+1871453148062Enzo Doria05/2016
4712(68*10^148060-257)/9148061Robert Price07/2019
4713Phi(162903,-5#)148043Henri Lifchitz12/2025
4714(151*10^148020-1)/3148022Robert Price03/2020
471539153^6032+6032^39153148017Hans Havermann10/2020
471636798^10507+10507^36798147983Hans Havermann12/2020
4717(26*10^147973-23)/3147974Robert Price12/2019
4718Phi(65997,11#)147973Henri Lifchitz12/2025
47192^491521-1865323147963Enzo Doria02/2016
4720(2^491476+7)/71147948Lelio R Paula10/2015
47212*10^147928+47147929Robert Price12/2021
47222^491391-7807147924Lelio R Paula01/2013
47232^491384+236221147922Enzo Doria05/2025
472439736^5279+5279^39736147920Hans Havermann11/2020
47252^491370-113297147918Enzo Doria07/2014
4726(3^707753)%F(707753)147912Henri Lifchitz06/2025
4727(32760^32760+32759^32759)/95546586737133567708319147900Robert Price07/2016
472844368^2155+2155^44368147899Hans Havermann12/2020
4729(17*10^147890+79)/3147891Robert Price04/2019
473094*10^147871-3147873Robert Price05/2020
473110^147843+620967147844Patrick De Geest05/2021
473210^147843-50000000001147843Robert Price12/2020
473310^147843-182891147843Patrick De Geest05/2021
473435805^13346+13346^35805147709Hans Havermann11/2020
47352^490672+255255147707Paul Bourdelais10/2021
47362^490660-17147704Lelio R Paula12/2017
4737(229*10^147699-1)/3147701Robert Price07/2020
473840656^4289+4289^40656147678Hans Havermann11/2020
4739(85*10^147676-31)/9147677Rytis Slatkevicius12/2024
47402^490550+1179439147671Enzo Doria06/2016
474127249^33292-33292^27249147662Frank Doornink06/2024
4742(23*10^147649-59)/9147650Robert Price05/2018
47432^490368-498143147616Maxim Gerspach08/2026
47442^490303+2793653147596Enzo Doria03/2016
47452^490266+255255147585Paul Bourdelais10/2021
4746199^64181-2147543Lelio R Paula11/2017
474732849^30958+30958^32849147518Hans Havermann11/2020
47482^489871-286987147466Enzo Doria07/2015
47492^489864-351899147464Enzo Doria07/2015
4750175^65724-2147422Lelio R Paula11/2017


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Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: November, 04 2026 09:32 (Time in France)

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