Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
1378831Factored2953163190589209653007089

544477335781983340278703289
LL
StatusDateUserResidueShift
Verified (Factored)Joel Armengaud665689B02747EC5A0
Verified (Factored)David Slowinski1EC5A0
Verified (Factored)2002-10-07S57483665689B02747EC5A1209299
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-24kkmrkkblmbrbkB42131F578B2CFF2232179013
Verified (Factored)2017-10-05Oliver KruseB42131F578B2CFF22013
History
DateUserTypeResult
2017-10-24kkmrkkblmbrbkC-PRPM1378831/2953163190589209653007089/544477335781983340278703289 : B42131F578B2CFF2
2017-10-05Oliver KruseC-PRPM1378831/2953163190589209653007089/544477335781983340278703289 : B42131F578B2CFF2
2017-09-30Oliver KruseC-PRPM1378831/2953163190589209653007089/544477335781983340278703289 : B42131F578B2CFF2
2016-03-17alpertronNF-PM1B1=500000, B2=15000000, E=12
2014-09-15mikrF-PM1Factor: 1607930426141434367790637581417486078100884444615721 / (P-1, B1=3106900, B2=111849000, E=12)
2014-04-22Jocelyn LaroucheNF-PM1B1=200000
2014-04-16Jocelyn LaroucheNF-PM1B1=120000
2014-04-15-Anonymous-NF-PM1B1=110000
2013-01-23dbaughNFno factor from 2^62 to 2^63
2012-09-26Grant McCrackenNFno factor from 2^61 to 2^62
2009-02-24Sturle SundeNFno factor from 2^60 to 2^61
2003-09-21XyzzyNF-PM1B1=15000, B2=228750
2003-09-21Team Prime RibNF-PM1B1=15000, B2=228750
2003-07-06-Anonymous-NFno factor to 2^58
2002-10-07-Anonymous-C-LL665689B02747EC5A
2001-11-03-Anonymous-NFno factor to 2^57