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

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MnStatusDetails
49408277Factored
FactorDigitsBitsDate
51489321787695973193163988277989246283527342138.62020-10-22 21:43:05
LL
StatusDateUserResidueShift
Verified (Factored)2011-04-04bamDCF3767D8E3062AA40883586
Verified (Factored)2018-09-10Dax MickelsonDCF3767D8E3062AA18632411
P-1 factors
DateFactorB1B2
2020-10-22514893217876959731931639882779892462835273100000020000000
History
DateUserTypeResult
2020-10-22Sid & AndyF-PM1
Factor: 514893217876959731931639882779892462835273 / (P-1, B1=1000000, B2=20000000, E=12)
2019-07-22Sid & AndyNF
no factor from 2^73 to 2^74
2018-09-10Dax MickelsonC-LL
DCF3767D8E3062AA
2017-09-14Sid & AndyNF
no factor from 2^72 to 2^73
2015-11-10LaurVNF
no factor from 2^71 to 2^72
2015-10-17LaurVNF
no factor from 2^70 to 2^71
2015-08-13LaurVNF
no factor from 2^69 to 2^70
2011-04-04bamC-LL
DCF3767D8E3062AA
2010-03-29-Anonymous-NF-PM1
B1=785000
2008-06-03-Anonymous-NF
no factor to 2^64