PRP Records

Probable Primes Top 10000

(301352 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 ?
7251fibonacci(510628)+2106715Jon Grantham08/2023
7252(15*2^354478-1)/26983106706Lelio R Paula03/2014
7253Phi(217618,10)/899798636917106693Makoto Kamada06/2019
725415^90710+28106684Lelio R Paula04/2017
72557^126237+34106683Lelio R Paula03/2017
72562^354385-115315106681Enzo Doria06/2015
72572^354327-19305106664Enzo Doria06/2013
7258(35*10^106649+1)/9106650Serge Batalov11/2010
725910^106636+97106637Lelio R Paula02/2017
726010^106636-22923106636Patrick De Geest03/2017
72612^354220-57106631Lelio R Paula10/2011
7262(68*10^106628-329)/9106629Robert Price03/2021
7263(29*10^106620-77)/3106621Robert Price02/2020
7264(746*10^106618+1)/9106620Robert Price03/2020
72652*10^106613+29106614Robert Price02/2021
72662^354157-17041106612Enzo Doria05/2013
726712^98778+73106600Lelio R Paula02/2017
726833333^1576+1576^33333106585Hans Havermann11/2020
72692^354064+1870651106584Enzo Doria05/2016
727024568^21779+21779^24568106577Hans Havermann11/2020
72712^353992-57106563Lelio R Paula10/2011
72729*10^106559+59106560Robert Price01/2020
72737*10^106553+27106554Robert Price11/2020
727428847^4938+4938^28847106548Hans Havermann10/2020
7275NSW(139160)106535Robert Price12/2018
7276f(278321)106535Robert Price07/2023
7277(7*10^106516+113)/3106517Robert Price02/2018
72782^353832-1853849106515Enzo Doria09/2015
7279(7^126037-1)/6106513Paul Bourdelais09/2008
72802^353794-18453106503Enzo Doria05/2013
7281(2^353761+2094)/2106493Stefano Morozzi09/2020
72822^353728+7695106483Lelio R Paula01/2017
728326476^10509+10509^26476106475Hans Havermann10/2020
72842^353672-303106466Yves Minet02/2012
72856^136811+101106460Lelio R Paula02/2017
72862^353641+1871981106457Enzo Doria05/2016
7287(8*10^106454-29)/3106455Robert Price07/2018
728827845^6654+6654^27845106454Hans Havermann11/2020
728910^106449-700001106449Robert Price08/2021
729025316^16017+16017^25316106444Hans Havermann11/2020
72912^353553+54615106431Lelio R Paula01/2017
72922^353544-18897106428Enzo Doria05/2013
729328894^4823+4823^28894106426Hans Havermann11/2020
7294(19*10^106422+29)/3106423Robert Price12/2021
7295(694*10^106418+53)/9106420Robert Price02/2022
72966*10^106412-13106413Robert Price07/2022
729725696^13829+13829^25696106402Hans Havermann11/2020
72986^136729-133106396Lelio R Paula02/2017
72992^353418+1605106390Lelio R Paula01/2017
73002^353387+65106381Lelio R Paula10/2011
73012^353372+74311106376Enzo Doria04/2016
73022^353344-3693106368Yves Minet03/2017
7303(772*10^106365-7)/9106367Robert Price06/2022
7304(56*10^106351+619)/9106352Robert Price05/2021
73052^353277-20089106347Enzo Doria06/2013
73062^353275+72173106347Enzo Doria04/2016
73072^353268-17705106345Enzo Doria05/2013
73082^353267-19857106344Enzo Doria06/2013
7309(46*10^106343+143)/9106344Robert Price01/2019
7310(2^353189+3054)/2106321Stefano Morozzi09/2020
731135087^1072+1072^35087106321Hans Havermann10/2020
7312(2^353184+1290)/2106319Stefano Morozzi01/2021
7313F(508799)/24738824977/1990778864897106310Serge Batalov07/2024
731426985^8684+8684^26985106287Hans Havermann10/2020
7315(2^353051+606)/2106279Stefano Morozzi09/2020
7317222748^3+3^222748106278Anatoly F. Selevich12/2010
7316(46*10^106277+107)/9106278Robert Price06/2022
7318(9179*2^353019-1)/9106273Lelio R Paula05/2015
73192^353025+72257106272Enzo Doria04/2016
73222^352932-20345106244Enzo Doria06/2013
7320(2^353011-3)/745325861246794515484535106244Lelio R Paula12/2013
732125628^13983+13983^25628106244Hans Havermann10/2020
73232^352883-187106229Lelio R Paula10/2011
732420^81649-19^81649106228Jean-Louis Charton03/2011
7325(55*10^106222+377)/9106223Robert Price02/2019
73262^352814-131106208Lelio R Paula10/2011
73272^352752+73951106189Enzo Doria04/2016
732811876*25^75945+357106171Eric Chen10/2023
73296^136434+5106167Lelio R Paula11/2014
733025296^15737+15737^25296106166Hans Havermann09/2020
73318*10^106157-13106158Robert Price08/2019
73322^352641+225677106156Enzo Doria08/2024
73337*5^151872-8106155Lelio R Paula11/2014
7334105^52520-2106153Lelio R Paula10/2017
7335(23*10^106152-29)/3106153Robert Price03/2022
73362^352601-1604809106144Enzo Doria05/2015
733712^98353-43106141Lelio R Paula02/2017
73382^352585-18901106139Enzo Doria05/2013
733926363^10614+10614^26363106135Hans Havermann09/2020
7340(2^352554-3)/193106128Lelio R Paula12/2013
73412^352540+15015106126Lelio R Paula01/2017
734225068^17119+17119^25068106125Hans Havermann09/2020
73432^352524-3149106121Yves Minet10/2014
7344(7*10^106119-67)/3106120Robert Price10/2021
73452^352486-1858781106109Enzo Doria04/2016
73462^352444+12705106097Lelio R Paula01/2017
734728561^5182+5182^28561106090Hans Havermann10/2020
7348(182*10^106083+43)/9106085Robert Price02/2020
7349(266*10^106066+1)/3106068Robert Price04/2020
7350(7*10^106066-187)/9106066Tyler Busby01/2023
73512^352228-18953106032Enzo Doria05/2013
7352(2^352223+1118)/2106030Stefano Morozzi09/2020
7353(2^352212+2250)/2106027Stefano Morozzi01/2021
7354(2^352136+2638)/2106004Stefano Morozzi09/2020
73552^352107+1872533105995Enzo Doria05/2016
7356(2^352096+2086)/2105992Stefano Morozzi09/2020
73572^352066-2591105983Yves Minet07/2014
73582^352030+715105972Lelio R Paula10/2011
73599*6^136176-5105967Lelio R Paula11/2014
736017099*2^351991+58329105965Paul Vanderveen12/2017
7361122^50789-50789^122105965Norman Luhn09/2024
736228582^5097+5097^28582105963Hans Havermann09/2020
7363155^48377+2105962Lelio R Paula08/2013
7364(23*10^105944-119)/3105945Robert Price07/2021
73652^351865+1869707105922Enzo Doria05/2016
736624974^17427+17427^24974105921Hans Havermann09/2020
736725163^16194+16194^25163105920Hans Havermann09/2020
73682^351831+23105912Lelio R Paula10/2011
7369(2^351818+3798)/2105908Stefano Morozzi02/2021
73709*2^351784-5105899Lelio R Paula09/2014
7371(2^351776+2766)/2105895Stefano Morozzi01/2021
7372(85*10^105881+203)/9105882Robert Price09/2020
73732^351671-112387105864Enzo Doria06/2014
73742^351669-109501105863Enzo Doria04/2014
73752^351644+74731105856Enzo Doria04/2016
737613^95025-42105853Lelio R Paula12/2016
73772^351599+15015105842Lelio R Paula01/2017
737819^82763+90105834Lelio R Paula01/2017
7379(205*10^105831-1)/3105833Robert Price11/2021
738026050^11551+11551^26050105832Hans Havermann09/2020
7381(9179*2^351540-1)/221105826Lelio R Paula05/2015
738220^81329-51105812Lelio R Paula01/2017
7383(5*10^105811+211)/9105811Robert Price02/2018
73842^351483+28425105807Lelio R Paula01/2017
738525231^15610+15610^25231105804Hans Havermann09/2020
738615^89960+86105802Lelio R Paula02/2017
73872^351460-17289105801Enzo Doria05/2013
738819^82735+22105798Lelio R Paula01/2017
73892^351435-109077105793Enzo Doria04/2014
73902^351393+1089105780Lelio R Paula01/2017
73912^351364+72631105772Enzo Doria04/2016
7392(2^351333+3626)/2105762Stefano Morozzi09/2020
739326818^8783+8783^26818105761Hans Havermann09/2020
73962^351305+1872467105754Enzo Doria05/2016
73953^221649+16105754Lelio R Paula11/2016
739432511^1790+1790^32511105754Hans Havermann09/2020
73978*3^221637-5105749Lelio R Paula09/2014
73982^351279-2780449105746Enzo Doria03/2016
7399(2^351263+3198)/2105741Stefano Morozzi09/2020
740015^89903-26105735Lelio R Paula02/2017
74022^351213-73105726Lelio R Paula10/2011
7401(2^351214+1210)/2105726Stefano Morozzi09/2020
74032^351192-4589105720Yves Minet07/2011
740420^81250-33105709Lelio R Paula12/2016
7405(2^351133+3530)/2105702Stefano Morozzi09/2020
7406(2^351103+534)/2105693Stefano Morozzi09/2020
74072^351076-113159105685Enzo Doria07/2014
740893^53688-2105684Lelio R Paula09/2013
74092^351060-4559105680Yves Minet07/2011
7410((10^52836-1)*10000/9+5927)*10^52836+(10^52836-1)/9105676Hans Havermann08/2019
741111^101473-750105674Enzo Doria11/2012
74123*5^151181-8105672Lelio R Paula11/2014
741315^89831-34105650Lelio R Paula02/2017
741511^101448-360105648Enzo Doria08/2012
74143*7^125011+4105648Lelio R Paula11/2014
74162^350943-113269105645Enzo Doria07/2014
74172*10^105636-91105637Robert Price04/2020
741824231^22880+22880^24231105634Hans Havermann09/2020
741935296^983+983^35296105626Hans Havermann09/2020
74202^350868-19725105622Enzo Doria06/2013
74212^350858-59291105619Enzo Doria10/2015
7422V(758484)/1516967/19720583105618Serge Batalov07/2024
74232^350851+135105617Lelio R Paula10/2011
74242^350841-741105614Lelio R Paula01/2017
74253*10^105582+77105583Robert Price09/2018
742624915^17284+17284^24915105581Hans Havermann09/2020
7427(5*10^105576-53)/3105577Robert Price09/2020
74288*10^105571+3105572Robert Price08/2015
74292^350674-78557105564Jorge Menendez03/2018
74302*5^151026-3105563Lelio R Paula11/2014
7431(2^350702+5)/34264674063105562Lelio R Paula12/2013
74326^135647-5^135647105554Jean-Louis Charton02/2009
74333^221211+236105545Lelio R Paula11/2016
7434(32*10^105530-77)/9105531Robert Price06/2018
743510^105515+33105516Lelio R Paula11/2016
743624644^19125+19125^24644105516Hans Havermann10/2020
743710^105515-41033105515Patrick De Geest12/2016
7438(29*2^350473-1)/267927105499Lelio R Paula03/2014
74392^350455-430567105498Harrison Mesh06/2022
744017^85732-72105489Lelio R Paula01/2017
7441(2^350399+3618)/2105481Stefano Morozzi09/2020
7442(2^350379+1010)/2105475Stefano Morozzi09/2020
74432^350356+24241105468Enzo Doria10/2023
744425233^15118+15118^25233105462Hans Havermann09/2020
744526261^10366+10366^26261105454Hans Havermann09/2020
74462^350307-110329105453Enzo Doria05/2014
74472^350253-20365105437Enzo Doria06/2013
7448(3*29^72089-1075)/4105423Curtis Bright05/2015
7449(2^350187+2658)/2105417Stefano Morozzi09/2020
74504*10^105415-69105416Robert Price01/2022
745121^79725-22105414Anonymous09/2024
7452(22*10^105407+179)/3105408Robert Price02/2022
74532^350139-109009105403Enzo Doria04/2014
7454(2^350129+3026)/2105400Stefano Morozzi09/2020
7455(2^350097+2070)/2105390Stefano Morozzi09/2020
74563*5^150763+4105380Lelio R Paula11/2014
745712^97643+91105375Lelio R Paula02/2017
74586*5^150744-7105367Lelio R Paula11/2014
7459(2^350018+2074)/2105366Stefano Morozzi09/2020
74604*10^105364-39105365Robert Price09/2020
74622^349996-112169105360Enzo Doria06/2014
7461(2^349997+3702)/2105360Stefano Morozzi09/2020
7463(418*10^105343+23)/9105345Robert Price02/2020
746425490^13563+13563^25490105334Hans Havermann10/2020
746511^101142-1080105329Enzo Doria12/2012
7466(68*10^105320-41)/9105321Robert Price10/2013
746724800^17649+17649^24800105319Hans Havermann09/2020
74683^220712-9934105307Enzo Doria05/2014
74697*10^105296+9105297Robert Price09/2015
747089*10^105284-7105286Robert Price04/2020
74712^349739+1873373105282Enzo Doria06/2016
74727^124574+24105278Lelio R Paula11/2016
74732^349708-20957105273Enzo Doria06/2013
747434115^1218+1218^34115105267Hans Havermann09/2020
747524029^24029-24020^24020105265Henri Lifchitz09/2024
74762^349649-20469105255Enzo Doria06/2013
74772^349607-20109105243Enzo Doria06/2013
7478(85*10^105242+473)/9105243Robert Price01/2020
74792^349594-19085105239Enzo Doria05/2013
74802^349530+1874479105220Enzo Doria06/2016
7481(3^220528+8)/8081105215Lelio R Paula12/2013
7482(106*10^105199+17)/3105201Robert Price04/2021
7483(2^349452+3570)/2105196Stefano Morozzi09/2020
74843^220464-112852105189Enzo Doria07/2014
74852^349419-17349105186Enzo Doria05/2013
74862^349400-2579105180Yves Minet07/2014
74878*5^150471+3105176Lelio R Paula11/2014
7488(2^349359+2298)/2105168Stefano Morozzi02/2021
7489655^37342+37342^655105165Norbert Schneider08/2018
749013^94403+94105160Lelio R Paula12/2016
74912^349301-112309105151Enzo Doria06/2014
749230291^2960+2960^30291105149Hans Havermann09/2020
749327350^6981+6981^27350105132Hans Havermann09/2020
74959*2^349220+5105127Lelio R Paula09/2014
7494(2^349225+3122)/2105127Stefano Morozzi09/2020
74967*3^220317+8105119Lelio R Paula09/2014
74977^124386+88105119Lelio R Paula11/2016
7498(2^349197+570)/2105119Stefano Morozzi09/2020
74992^349171-19657105111Enzo Doria06/2013
7500(2^349115+590)/2105094Stefano Morozzi09/2020


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Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: April, 24 2025 12:56 (Time in France)

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