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

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Exponent Range:










MnStatusDetails
29026961Factored
FactorDigitsBitsDate
412117523438926596618712375.12021-12-12 06:00:56
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)2006-06-13Nick Craig-Wood0A0E990583ADA19326323355
Verified (Factored)2012-12-03-Anonymous-0A0E990583ADA19310690236
History
DateUserTypeResult
2021-12-12ATHF-PP1
Start=2/7, B1=1000000, B2=28000000, Factor: 41211752343892659661871
2021-11-11Architects CubedNF-PM1
B1=1014000, B2=49110000
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
2020-08-17Sid & AndyNF
no factor from 2^71 to 2^72
2020-08-17Sid & AndyNF
no factor from 2^70 to 2^71
2012-12-03-Anonymous-C-LL
0A0E990583ADA193
2012-02-29bcp19NF
no factor from 2^69 to 2^70
2012-02-24LaurVNF
no factor from 2^68 to 2^69