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
1935677Factored
FactorDigitsBitsDate
51862349418808815664072272.12017-02-27 16:58:08
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Peter Kratochvil3D7B00206C51F66B0
Verified (Factored)1999-01-10Jack Woodrow3D7B00206C51F66B1200321
Verified (Factored)2015-06-27MadPoo3D7B00206C51F66B1684569
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-05Oliver Kruse9196FDED554C41631013
Verified2017-11-11kkmrkkblmbrbk9196FDED554C41631142256013
History
DateUserTypeResult
2017-11-11kkmrkkblmbrbkC-PRP
M1935677/5186234941880881566407 : 9196FDED554C4163
PRP: Verified
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1935677/5186234941880881566407 : 9196FDED554C4163
PRP: Verified
PRP without proof (not generated)
2017-02-27bamF-ECM
Factor: 5186234941880881566407 / (ECM curve 3, B1=50000, B2=5000000)
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2015-09-04ramgeisNF
no factor from 2^65 to 2^66
2015-06-27MadPooC-LL
3D7B00206C51F66B
2015-05-13lycornNF
no factor from 2^64 to 2^65
2015-05-13lycornNF
no factor from 2^63 to 2^64
2011-11-20kurlyNF-PM1
B1=1000000, B2=30000000, E=12
2011-08-27GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-02-02S485122NF
no factor from 2^60 to 2^61