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
2924839TF
No factors below 270
TF target 263
TF below 2^74 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 10000000
B2 = 19223759100
ECM
DigitsB1Curves
2550000213 / 280
Estimated T-Level: 23.8 ⓘ
LL
StatusDateUserResidueShift
VerifiedJoel Armengaud0901A221C1B2E4E90
Verified1999-05-16Sean Mathias0901A221C1B2E4E91547574
Verified2018-10-06kkmrkkblmbrbk0901A221C1B2E4E92646639
History
DateUserTypeResult
2023-05-05TJAOINF
no factor from 2^69 to 2^70
2022-09-03Wentao HuangNF-PM1
B1=1200000, B2=3268104840
2022-08-27mikrNF-PM1
B1=10000000, B2=19223759100
2021-05-31TJAOINF
no factor from 2^68 to 2^69
2018-12-20chuenkitNF
no factor from 2^67 to 2^68
2018-10-06kkmrkkblmbrbkC-LL
0901A221C1B2E4E9
2017-11-22Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-02-23ramgeisNF
no factor from 2^65 to 2^66
2015-04-27VictordeHollanderNF-PM1
B1=1000000, B2=20000000, E=12
2015-04-25VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-25VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-10dbaughNF
no factor from 2^62 to 2^63
2012-01-09Grant McCrackenNF
no factor from 2^61 to 2^62
2010-11-13markrNF-PM1
B1=105000, B2=2283750, E=6
2009-02-13Sturle SundeNF
no factor from 2^60 to 2^61