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
432893Factored
FactorDigitsBitsDate
1010398183823869106389509672786.42019-05-15 17:28:46
ECM
DigitsB1Curves
2550000280 / 280
30250000200 / 640
Estimated T-Level: 26.6 ⓘ
TF below 2^83 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski2880
Verified (Factored)Steve Costaras03C573B588CA82880
Verified (Factored)Eivind Triel03C573B588CA8288155871
Verified (Factored)2002-03-10Dennis Pope03C573B588CA8288299146
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2019-05-16Niels_Mache_Nextcloud5FBA36A7C84E9D9B127978753
Verified2019-05-16francijezek5FBA36A7C84E9D9B138606053
Verified2019-05-17kkmrkkblmbrbk5FBA36A7C84E9D9B15706553
History
DateUserTypeResult
2019-05-17kkmrkkblmbrbkC-PRP
M432893/101039818382386910638950967 : 5FBA36A7C84E9D9B
PRP: Verified
PRP without proof (small exponent)
2019-05-16francijezekC-PRP
M432893/101039818382386910638950967 : 5FBA36A7C84E9D9B
PRP: Verified
PRP without proof (small exponent)
2019-05-16Niels_Mache_NextcloudC-PRP
M432893/101039818382386910638950967 : 5FBA36A7C84E9D9B
PRP: Verified
PRP without proof (small exponent)
2019-05-15alexF-ECM
Factor: 101039818382386910638950967 / (ECM curve 60, B1=250000, B2=25000000, Sigma=8040004343746394)
2018-12-12Gordon SpenceNF
no factor from 2^65 to 2^66
2017-12-21Gordon SpenceNF
no factor from 2^64 to 2^65
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-11-28Gordon SpenceNF
no factor from 2^63 to 2^64
2015-11-28Gordon SpenceNF
no factor from 2^62 to 2^63
2012-12-01dbaughNF
no factor from 2^61 to 2^62
2012-11-27dbaughNF
no factor from 2^60 to 2^61
2012-08-28markrNF-PM1
B1=10000000, B2=400000000, E=12
2010-08-14Rob_DeeNF-PM1
B1=1000000, B2=2000000, E=6
2010-08-13Rob_DeeNF-PM1
B1=500000, B2=1000000
2009-08-26Carsten KossendeyNF-PM1
B1=432893