Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
49698739Factored
FactorDigitsBitsDate
34877059667800127853391672581.52021-07-01 21:57:32
ECM
DigitsB1Curves
255000011 / 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)2012-01-06betacygni8C3800BFAD131607564156
Verified (Factored)2018-09-29MattP8C3800BFAD13160735403750
History
DateUserTypeResult
2021-07-01Anton RepkoF-PP1
Start=2/7, B1=700000, B2=34300000, Factor: 3487705966780012785339167
2021-03-15Sid & AndyNF-PM1
B1=1500000, B2=45000000
2018-12-22-Anonymous-NF
no factor from 2^73 to 2^74
2018-09-29MattPC-LL
8C3800BFAD131607
2017-10-28Mark RoseNF
no factor from 2^72 to 2^73
2015-12-17AirSquirrelsNF
no factor from 2^71 to 2^72
2015-12-17AirSquirrelsNF
no factor from 2^70 to 2^71
2015-07-14Gordon SpenceNF
no factor from 2^69 to 2^70
2012-01-06betacygniC-LL
8C3800BFAD131607
2010-02-12JamesNF-PM1
B1=780000