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
4990133Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 272
TF target 265
P-1
B1 = 7000000
B2 = 8975658510
ECM
DigitsB1Curves
2550000105 / 280
Estimated T-Level: 21.9 ⓘ
LL
StatusDateUserResidueShift
Verified1998-06-14Steve WirtzC59A20ABE7124F280
Verified2000-08-17Lars LindleyC59A20ABE7124F282455308
History
DateUserTypeResult
2022-09-15Prism DaymonNF-PM1
B1=7000000, B2=8975658510
2021-04-25-Anonymous-NF
no factor from 2^71 to 2^72
2021-04-24-Anonymous-NF
no factor from 2^70 to 2^71
2021-04-23-Anonymous-NF
no factor from 2^69 to 2^70
2021-01-18TJAOINF
no factor from 2^68 to 2^69
2018-06-05ramgeisNF
no factor from 2^67 to 2^68
2017-05-21YxinityNF
no factor from 2^66 to 2^67
2017-02-04Squeeky_SquirrelNF-PM1
B1=300000, B2=9375000, E=12
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-07-31snme2pm1NF
no factor from 2^65 to 2^66
2014-11-07lycornNF
no factor from 2^64 to 2^65
2014-11-07lycornNF
no factor from 2^63 to 2^64
2011-12-14Squeeky_SquirrelNF-PM1
B1=120000, B2=2430000, E=6
2011-11-13GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-07-22USAFSSNF-PM1
B1=60000, B2=990000, E=6
2008-09-04Sturle SundeNF
no factor from 2^61 to 2^62