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

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MnStatusDetails
25304593Factored
FactorDigitsBitsDate
193739943020016665125038312684.02021-12-25 00:13:29
ECM
DigitsB1Curves
255000034 / 280
Estimated T-Level: 20.6 ⓘ
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2004-11-22Michael Kosta57E482559D9F72819607873
Verified (Factored)2012-09-06garo57E482559D9F728124058650
History
DateUserTypeResult
2021-12-25Anton RepkoF-PP1
Start=2/7, B1=2000000, B2=120000000, Factor: 19373994302001666512503831
2021-10-17TheJudgerNF
no factor from 2^74 to 2^75
2021-10-01TheJudgerNF
no factor from 2^73 to 2^74
2021-08-28TheJudgerNF
no factor from 2^72 to 2^73
2021-08-28TheJudgerNF
no factor from 2^71 to 2^72
2021-06-10mikrNF
no factor from 2^70 to 2^71
2017-03-19ramgeisNF
no factor from 2^69 to 2^70
2012-09-06garoC-LL
57E482559D9F7281
2011-12-17bcp19NF
no factor from 2^68 to 2^69
2011-10-06garoNF
no factor from 2^67 to 2^68