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

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Exponent Range:










MnStatusDetails
29033219Factored
FactorDigitsBitsDate
15326358122112184230248172580.32021-12-30 14:45:09
ECM
DigitsB1Curves
255000012 / 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)2006-03-01Rob EbbersB458D30EEB063FBD223518
Verified (Factored)2012-04-12Ton van der WoudenB458D30EEB063FBD9112632
History
DateUserTypeResult
2021-12-30ATHF-PP1
Start=2/7, B1=1000000, B2=26000000, Factor: 1532635812211218423024817
2021-10-06TheJudgerNF
no factor from 2^74 to 2^75
2021-09-10TheJudgerNF
no factor from 2^73 to 2^74
2021-01-07Sid & AndyNF
no factor from 2^72 to 2^73
2020-08-22Sid & AndyNF
no factor from 2^71 to 2^72
2020-08-22Sid & AndyNF
no factor from 2^70 to 2^71
2017-02-13ramgeisNF
no factor from 2^69 to 2^70
2012-04-12Ton van der WoudenC-LL
B458D30EEB063FBD
2012-01-07bcp19NF
no factor from 2^68 to 2^69
2010-05-17GrunwalderGIMPNF
no factor from 2^67 to 2^68
2010-05-17GrunwalderGIMPNF
no factor from 2^66 to 2^67