PRP Records

Probable Primes Top 10000

(295036 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 ?
5501(2^387073+2570)/2116521Stefano Morozzi09/2020
5502(7*10^116514-1)/3116515Robert Price08/2022
5503(26*32^77406-390071011)/31116508Eric Chen11/2023
550428846^10931+10931^28846116500Hans Havermann02/2021
550510^116496+3593037116497Paul Bourdelais10/2021
5506(31*2^386968+1)/7116490Lelio R Paula03/2014
55072^386947+1869143116483Enzo Doria05/2016
5508(30^78857-1)/29116480Robert Price12/2011
5509(2^386903-3)/5116469Lelio R Paula03/2014
551028107^13892+13892^28107116441Hans Havermann02/2021
551129110^9957+9957^29110116386Hans Havermann02/2021
551226469^24838+24838^26469116335Hans Havermann01/2021
55132^386389-1864783116315Enzo Doria03/2016
5514(8*32^77250-163)/31116273Eric Chen11/2023
5515(31*2^386231-1)/1711116266Lelio R Paula03/2014
5516297^47012+47012^297116250Norbert Schneider07/2018
5517(35*10^116223-341)/9116224Robert Price08/2021
5518(2^386087-5)/40959116220Lelio R Paula03/2014
5519(2^386054+714)/2116214Stefano Morozzi09/2020
5520(10^116201+7)/39623116197Alfred Reich06/2021
55212^385969-823116189Yves Minet05/2012
552257^66162+2116173Lelio R Paula08/2013
55232^385854+75049116154Enzo Doria04/2016
5524(2^385832+2590)/2116147Stefano Morozzi09/2020
55252^385775-109587116130Enzo Doria04/2014
5526(14*10^116112-101)/3116113Robert Price02/2019
5527Phi(236354,10)/24817171116109Makoto Kamada08/2019
55283*10^116107+23116108Robert Price03/2022
552928729^10990+10990^28729116094Hans Havermann02/2021
55302^385622+71839116084Enzo Doria04/2016
55322^385564+781116067Lelio R Paula01/2012
5531(2^385565+1562)/2116067Stefano Morozzi09/2020
5533(2^385563+378)/2116066Stefano Morozzi02/2021
5534(2^385557+2214)/2116064Stefano Morozzi09/2020
553529431^8776+8776^29431116056Hans Havermann01/2021
5536(266*10^116024-17)/3116026Robert Price07/2020
553730263^6820+6820^30263116022Hans Havermann02/2021
55382^385410+71893116020Enzo Doria04/2016
553938225^1084+1084^38225116014Hans Havermann02/2021
554026548^23433+23433^26548116011Hans Havermann02/2021
554112^107422-11115928Riley Fisher12/2023
5542(25*2^385091+1)/27115924Lelio R Paula04/2014
5543(11*10^115910-131)/3115911Robert Price09/2018
55442^384953-111943115883Paul Bourdelais02/2012
554543^70942-2115882Lelio R Paula04/2014
5546(94*10^115879-7)/3115881Robert Price03/2020
55477*10^115863+3115864Robert Price08/2015
55482^384834+93115847Donovan Johnson07/2008
55492^384809+71297115840Enzo Doria04/2016
5550(55*10^115829+323)/9115830Robert Price10/2021
5551(7*2^384759-1)/5115825Lelio R Paula04/2014
555231348^4951+4951^31348115822Hans Havermann02/2021
5553(793*10^115810+53)/9115812Robert Price01/2022
5554(71*10^115810-17)/9115811Ray Chandler08/2011
5555(97*10^115794-1)/3115796Serge Batalov12/2014
555631115^5266+5266^31115115794Hans Havermann02/2021
55572*10^115784-27115785Robert Price05/2018
555810^115773+126739115774Patrick De Geest04/2018
556010^115773-1000000001115773Robert Price03/2018
555910^115773-396221115773Patrick De Geest04/2018
5561(2^384582+778)/2115771Stefano Morozzi09/2020
556230537^6178+6178^30537115762Hans Havermann01/2021
55632^384530+1874305115756Enzo Doria06/2016
5564(3*2^384524-1)/7631115750Lelio R Paula03/2014
556528275^12406+12406^28275115748Hans Havermann01/2021
5566(44*10^115697-413)/9115698Robert Price03/2019
556731408^4825+4825^31408115692Hans Havermann02/2021
5568(2^384317+1026)/2115691Stefano Morozzi09/2020
55692^384312+81091115690Yves Minet02/2010
5570(2^384265+2150)/2115675Stefano Morozzi09/2020
5571(2^384246+2182)/2115670Stefano Morozzi09/2020
5572(4*10^115668-79)/3115669Robert Price02/2018
5573(2^384193+242)/2115654Stefano Morozzi09/2020
5574(266947#+1267)/(7^2*181)115647Makoto Morimoto06/2019
5575(266947#+273808)/(2*109*157)115646Makoto Morimoto10/2017
557618^92125-92125^18115642Dylan Delgado08/2019
55773^242337-4042115625Enzo Doria05/2014
5578(2^383931+674)/2115575Stefano Morozzi09/2020
55797*10^115561+79115562Robert Price07/2019
5580(2^383872+3046)/2115557Stefano Morozzi09/2020
5581(11*2^383859-13)/15115553Renaud Lifchitz03/2011
55822^383780-3149115530Yves Minet10/2014
5583(41*10^115523-383)/9115524Robert Price11/2018
558427316^16923+16923^27316115506Hans Havermann02/2021
5585(2^383618+618)/2115481Stefano Morozzi09/2020
55862^383560-455115464Yves Minet03/2012
5587(2^383544+5)/3115458Lelio R Paula03/2014
5588(22*10^115454+119)/3115455Robert Price04/2021
558989^59221-88^59221115445Robert Price06/2015
5590(7^136559-5^136559)/2115406Jon Grantham08/2023
55912^383347+1869413115399Enzo Doria05/2016
5592(103*10^115366+17)/3115368Robert Price08/2020
5593(2^383232+750)/2115365Stefano Morozzi09/2020
5594(2^383130-7)/131793115329Lelio R Paula03/2014
5595(12^106859+1)/13115320Paul Bourdelais02/2010
559629961^7060+7060^29961115315Hans Havermann01/2021
55982^383039+1869509115307Enzo Doria05/2016
559732918^3183+3183^32918115307Hans Havermann01/2021
559936964^1315+1315^36964115288Hans Havermann02/2021
5600(13*2^382968+1)/7115286Lelio R Paula04/2014
5601(22*10^115282+29)/3115283Robert Price02/2021
5602(2^382945+2046)/2115278Stefano Morozzi09/2020
5603(2^382789+3182)/2115231Stefano Morozzi09/2020
560430416^6141+6141^30416115224Hans Havermann02/2021
56056*10^115211+79115212Robert Price09/2020
5606(2^382722+3598)/2115211Stefano Morozzi09/2020
560727987^13078+13078^27987115210Hans Havermann02/2021
5608(2^382699+2090)/2115204Stefano Morozzi09/2020
5609(22*10^115188-193)/9115189Robert Price07/2022
56102^382633+73697115185Enzo Doria04/2016
56112^382509-113593115147Enzo Doria08/2014
56122^382502-2791721115145Enzo Doria03/2016
5613(2^382495+1274)/2115143Stefano Morozzi01/2021
56142^382464+22741115134Enzo Doria09/2023
561526752^20065+20065^26752115099Hans Havermann02/2021
561626383^23008+23008^26383115080Hans Havermann02/2021
56179^120590-120590115073Robert Price03/2014
561828203^12016+12016^28203115062Hans Havermann02/2021
56192^382198+9115054Lelio R Paula03/2013
562030101^6630+6630^30101115032Hans Havermann01/2021
5621(89*10^115030-179)/9115031Robert Price12/2019
562225554^26089-26089^25554114987Frank Doornink02/2024
562325142^26129-26129^25142114979Frank Doornink12/2023
5624(2^381935+2774)/2114974Stefano Morozzi02/2021
562527300^16271+16271^27300114972Hans Havermann02/2021
5626(23*10^114962+7)/3114963Robert Price05/2023
56272^381883-59197114959Enzo Doria10/2015
562827423^15542+15542^27423114944Hans Havermann02/2021
5629(2^381820+1626)/2114939Stefano Morozzi09/2020
56312^381806-4481114936Yves Minet07/2011
56302^381808-1851507114936Enzo Doria08/2015
5632(2^381792+2502)/2114931Stefano Morozzi09/2020
56332^381774-112373114926Enzo Doria06/2014
563426341^22980+22980^26341114883Hans Havermann01/2021
56352^381555-109051114860Enzo Doria04/2014
56362^381551+213683114859Enzo Doria09/2023
56372^381546-113501114857Enzo Doria08/2014
5638(7*10^114845-19)/3114846Robert Price10/2020
563926675^20178+20178^26675114833Hans Havermann02/2021
5640(2^381436+1182)/2114824Stefano Morozzi09/2020
56413^240644+16114817Robert Price04/2020
56422^381360-110429114801Enzo Doria05/2014
5643(17*10^114795+79)/3114796Robert Price04/2019
5644(66^63079+1)/67114774Paul Bourdelais09/2017
56452^381252-115079114769Enzo Doria06/2015
5646(2^381251+3186)/2114768Stefano Morozzi09/2020
56472^381209-29323114756Enzo Doria07/2015
56482^381207-111546435114755Paul Bourdelais10/2021
5649569^41651-568^41651114754Jean-Louis Charton11/2009
56502^381201+1873205114753Enzo Doria06/2016
5651(85*10^114737+293)/9114738Robert Price12/2019
5652(265*10^114736+17)/3114738Robert Price03/2020
5653(2^381062+2170)/2114711Stefano Morozzi09/2020
56542^380974-112991114685Enzo Doria07/2014
565537097^1234+1234^37097114679Hans Havermann02/2021
5656(26*10^114658-119)/3114659Robert Price07/2023
565788^58949-87114626Norbert Schneider11/2015
5658(2^380773+662)/2114624Stefano Morozzi09/2020
5659Phi(155285,10)/242674820198201114610Makoto Kamada02/2024
566029913^6782+6782^29913114608Hans Havermann02/2021
5661(331*10^114605-7)/9114607Robert Price04/2022
56622^380700+91114603Lelio R Paula03/2013
5663(2^380632+2578)/2114582Stefano Morozzi09/2020
56647*10^114577+27114578Robert Price11/2020
566610^114575+3^114576114576Mike Oakes09/2010
566510^114575+66561114576Patrick De Geest02/2017
566710^114575-581081114575Patrick De Geest02/2017
56682^380587-115315114569Enzo Doria06/2015
566931874^3927+3927^31874114558Hans Havermann02/2021
56702^380513-216925114546Enzo Doria05/2014
56712^380451-1840087114528Enzo Doria06/2015
5672(2^380426+1510)/2114520Stefano Morozzi09/2020
5673(15*2^380388-1)/539114507Lelio R Paula04/2014
56742^380279-461347114476Enzo Doria07/2015
5675(331*10^114454-7)/9114456Robert Price04/2022
567627121^16590+16590^27121114447Hans Havermann01/2021
567725966^25555+25555^25966114445Hans Havermann01/2021
5678(611*32^76029-53)/31114437Eric Chen11/2023
5679(11*10^114400+529)/9114401Robert Price09/2021
56802^380021+1871147114398Enzo Doria05/2016
56812^380005+1869707114393Enzo Doria05/2016
56822^379958-113297114379Enzo Doria07/2014
5683(2^379897+1274)/2114361Stefano Morozzi01/2021
56842^379881-109105114356Enzo Doria04/2014
5685(21*2^379857-1)/13114349Lelio R Paula03/2014
5686(4*10^114340+83)/3114341Robert Price02/2018
5687(26*10^114317-77)/3114318Robert Price11/2019
5688(4*10^114296+149)/9114296Robert Price04/2018
568988^58773-87114284Norbert Schneider11/2015
569027764^13065+13065^27764114280Hans Havermann01/2021
56912^379529-2790283114250Enzo Doria03/2016
56922^379522+1869115114248Enzo Doria05/2016
5693(145*10^114226-1)/9114228Serge Batalov12/2014
56942^379317-115033114186Enzo Doria06/2015
5695(22*10^114178+47)/3114179Robert Price06/2021
5696(17*2^379246-1)/17407114162Lelio R Paula03/2014
5697(2^379192+226)/2114148Stefano Morozzi09/2020
5698(228^48407-1)/227114139Alexander Zhirkov03/2023
56996*10^114091+23114092Robert Price09/2020
5700(4*10^114076+143)/3114077Robert Price03/2018
5701332*25^81584+12357114053Eric Chen10/2023
5702(2^378820+3226)/2114036Stefano Morozzi01/2021
5703(2^378754+2058)/2114017Stefano Morozzi09/2020
570413643^27572-27572^13643114008Norbert Schneider12/2022
5706(46*10^113969+683)/9113970Robert Price03/2019
5705(83*10^113969+133)/9113970Robert Price08/2021
570732226^3439+3439^32226113966Hans Havermann02/2021
5708(77*10^113963-149)/9113964Robert Price03/2022
570978*10^113954-7113956Robert Price10/2020
57102*10^113941+9113942Dmitry Domanov11/2010
571110^113933+145897113934Patrick De Geest02/2021
5714(2^378478+1642)/2113933Stefano Morozzi09/2020
571210^113933-8000000001113933Robert Price11/2020
571310^113933-66167113933Patrick De Geest02/2021
57152339662057597*10^113903+9113916Robert Price03/2021
57164*10^113905+91113906Robert Price08/2018
571710^113894+76609113895Patrick De Geest02/2021
571910^113894-10000001113894Robert Price09/2020
571810^113894-373947113894Patrick De Geest02/2021
572033933^2270+2270^33933113881Hans Havermann02/2021
57214*10^113874-21113875Robert Price09/2018
57222^378272-16565113872Enzo Doria04/2013
57232^378217-109075113855Enzo Doria04/2014
57242^378198+67113849Lelio R Paula03/2013
57252^378173-3249113842Yves Minet12/2014
5726(2^378155-5)/6597113833Lelio R Paula03/2014
572792941#+(355049#)/(92941#)113830Makoto Morimoto10/2017
572830030^6173+6173^30030113829Hans Havermann01/2021
57292^378128-262977113828Enzo Doria05/2014
57302^378123-113215113827Enzo Doria07/2014
57316^146274-18893113824Enzo Doria03/2013
573234596^1949+1949^34596113815Hans Havermann02/2021
57332^378078+75113813Lelio R Paula03/2013
5734(28*10^113810+449)/9113811Robert Price11/2021
573526273^21448+21448^26273113799Hans Havermann02/2021
57362^377966+255255113780Paul Bourdelais10/2021
57372^377940+63113772Lelio R Paula03/2013
57382^377941-2785843113772Enzo Doria04/2016
5739(7*10^113757+11)/9113757Tyler Busby01/2023
57402^377810+1875109113733Enzo Doria09/2016
57412^377803-1838635113731Enzo Doria05/2015
57422^377799+52223113729Yves Minet08/2010
5743(2^377791+3258)/2113727Stefano Morozzi02/2021
574411^109190-270113710Enzo Doria12/2012
574528206^10739+10739^28206113698Hans Havermann01/2021
57467*10^113693+9113694Robert Price09/2015
574713899^27442+27442^13899113692Norbert Schneider12/2020
5748(82*10^113681+161)/9113682Robert Price10/2019
574926121^22478+22478^26121113673Hans Havermann01/2021
57504*10^113658+49113659Robert Price01/2019


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Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: April, 23 2024 10:10 (Time in France)

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