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
2480677Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 263
TF below 2^81 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 8800000
B2 = 45300145800
ECM
DigitsB1Curves
2550000280 / 280
3025000096 / 640
Estimated T-Level: 25.8 ⓘ
LL
StatusDateUserResidueShift
Verifiedrobert garry4AD7EDFCAF6B95470
Verified1999-10-15Leigh Thompson4AD7EDFCAF6B95472325239
Verified2018-05-30kkmrkkblmbrbk4AD7EDFCAF6B9547531994
History
DateUserTypeResult
2024-04-05TJAOINF
no factor from 2^69 to 2^70
2023-09-10JossNF-PM1
B1=1000000, B2=15002507520
2023-09-08Sid & AndyNF-PM1
B1=8800000, B2=45300145800
2023-06-02JossNF-PM1
B1=1000000, B2=3645762120
2023-01-01JossNF-PM1
B1=1000000, B2=548467920
2021-07-05TJAOINF
no factor from 2^68 to 2^69
2019-07-17TJAOINF
no factor from 2^67 to 2^68
2018-05-30kkmrkkblmbrbkC-LL
4AD7EDFCAF6B9547
2017-07-22Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-10-29ramgeisNF
no factor from 2^65 to 2^66
2015-03-03VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-03VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-31mikrNF-PM1
B1=2382500, B2=85770100, E=12
2014-09-23JossNF-PM1
B1=125874
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-06-09Sebastian HornbostelNF
no factor from 2^61 to 2^62
2009-01-15Sturle SundeNF
no factor from 2^60 to 2^61