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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MnStatusDetails
2100121Factored
FactorDigitsBitsDate
6706011359766963436632169.22014-03-15 15:05:16
ECM
DigitsB1Curves
2550000110 / 280
Estimated T-Level: 22.0 ⓘ
TF below 2^68 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Jeff MitchellE67B826603CF58E70
Verified (Factored)1999-04-02Andrew Haveland-RobinsonE67B826603CF58E71896075
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-07Oliver Kruse1AE3C8C4904A4FBB1013
Verified2017-11-17kkmrkkblmbrbk1AE3C8C4904A4FBB1156175813
History
DateUserTypeResult
2017-11-17kkmrkkblmbrbkC-PRP
M2100121/670601135976696343663 : 1AE3C8C4904A4FBB
PRP: Verified
PRP without proof (not generated)
2017-10-07Oliver KruseC-PRP
M2100121/670601135976696343663 : 1AE3C8C4904A4FBB
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2014-03-15BloodIceF-ECM
Factor: 670601135976696343663
2014-03-08Never Odd Or EvenNF
no factor from 2^69 to 2^70
2014-03-08Never Odd Or EvenNF
no factor from 2^68 to 2^69
2014-03-08Never Odd Or EvenNF
no factor from 2^67 to 2^68
2012-08-22BloodIceNF-PM1
B1=5000000, B2=500000000, E=12
2012-02-04BloodIceNF
no factor from 2^66 to 2^67
2012-02-02BloodIceNF
no factor from 2^65 to 2^66
2012-02-02BloodIceNF
no factor from 2^64 to 2^65
2012-02-02BloodIceNF
no factor from 2^63 to 2^64
2012-02-02BloodIceNF
no factor from 2^62 to 2^63
2012-02-02BloodIceNF
no factor from 2^61 to 2^62
2009-07-15BigBrotherNF-PM1
B1=200000, B2=5000000, E=6
2009-01-03Sturle SundeNF
no factor from 2^60 to 2^61