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
1970279TF
No factors below 269
TF target 262
TF below 2^80 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 30000000
B2 = 102514822410
ECM
DigitsB1Curves
2550000280 / 280
3025000056 / 640
Estimated T-Level: 25.4
LL
StatusDateUserResidueShift
VerifiedGuy PaquetD4B29FEED7618F1D0
Verified1999-01-17Ross MurrayD4B29FEED7618F1D1119479
Verified2015-07-12MadPooD4B29FEED7618F1D1696849
History
DateUserTypeResult
2022-09-15RichD0NF-PM1
B1=30000000, B2=102514822410
2022-08-09masserNF-PP1
Start=2/7, B1=1400000, B2=49000000
2022-03-07tim sNF
no factor from 2^68 to 2^69
2019-05-18chuenkitNF
no factor from 2^67 to 2^68
2018-11-26JossNF-PM1
B1=1970279, B2=246284875, E=12
2018-09-18JossNF-PM1
B1=1970279, B2=197027900, E=12
2018-05-28TJAOINF
no factor from 2^66 to 2^67
2018-03-04JossNF-PM1
B1=1970279, B2=120000000, E=12
2018-02-14JossNF-PM1
B1=1970279, B2=60000000, E=12
2018-01-20JossNF-PM1
B1=1970279, B2=30000000, E=12
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-09-09ramgeisNF
no factor from 2^65 to 2^66
2015-07-12MadPooC-LL
D4B29FEED7618F1D
2015-03-22lycornNF
no factor from 2^64 to 2^65
2015-03-22lycornNF
no factor from 2^63 to 2^64
2011-08-27GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-03-29kurlyNF-PM1
B1=1000000, B2=30000000
2010-01-01S485122NF
no factor from 2^60 to 2^61