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

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MnStatusDetails
29027293Factored
FactorDigitsBitsDate
417002917400115393695032375.12021-12-12 11:58:43
ECM
DigitsB1Curves
255000013 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2005-04-02Orin MarksC975B5B37F364CED14515347
Verified (Factored)2012-08-20RMAC9.5C975B5B37F364CED3936900
History
DateUserTypeResult
2021-12-12ATHF-PP1
Start=2/7, B1=1000000, B2=28000000, Factor: 41700291740011539369503
2021-10-06TheJudgerNF
no factor from 2^74 to 2^75
2021-09-10TheJudgerNF
no factor from 2^73 to 2^74
2021-01-06Sid & AndyNF
no factor from 2^72 to 2^73
2020-08-18Sid & AndyNF
no factor from 2^71 to 2^72
2020-08-17Sid & AndyNF
no factor from 2^70 to 2^71
2012-08-20RMAC9.5C-LL
C975B5B37F364CED
2012-02-29bcp19NF
no factor from 2^69 to 2^70
2012-02-24LaurVNF
no factor from 2^68 to 2^69