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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
996529Factored
FactorDigitsBitsDate
22196449164693643931960.92008-02-07 00:02:24
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 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)David Slowinski111E0
Verified (Factored)Oyvind PedersenBBC05EA7F450711E0
Verified (Factored)2001-12-01Marc Getty / Phil FizurBBC05EA7F450711E141589
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-28Oliver Kruse90E90C0CF746EFFE1013
Verified2017-10-15Oliver Kruse90E90C0CF746EFFE169588913
Verified2017-12-24ATH90E90C0CF746EFFE192653813
Unverified (Reliable)2020-04-25Oliver Kruse827BE3F8423EE9__15634353
History
DateUserTypeResult
2020-04-25Oliver KruseC-PRP
M996529/2219644916469364393 : 827BE3F8423EE9__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-12-24ATHC-PRP
M996529/2219644916469364393 : 90E90C0CF746EFFE
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-15Oliver KruseC-PRP
M996529/2219644916469364393 : 90E90C0CF746EFFE
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M996529/2219644916469364393 : 90E90C0CF746EFFE
PRP: Unverified (Reliable)
PRP without proof (not generated)
2008-02-07Chad DavisF-ECM
Factor: 2219644916469364393