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
Fermat F22Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
6465870599459185100905577486850457735115.62010-03-26
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000003048 / 9201
Estimated T-Level: 41.7
TF below 2^133 is very unlikely to find new factors due to ECM effort.
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2024-11-03Bucklefactor ECM smallC2S119.71 % 2024-11-14
2024-10-06Dr. Dwaynefactor ECM smallC3S134.68 % 2024-11-15
2024-09-16S36049factor ECM smallC2S27.94 % 2024-11-14
2023-12-29Dr. Dwaynefactor ECM smallC5S169.88 % 2024-11-15
History
DateUserTypeResult
2023-06-16James HeinrichNF-PM1
B1=20000000, B2=10128934200
2021-09-04H MichaelsonNF-PP1
Start=2/7, B1=1000000, B2=100000000
2021-04-29ATHNF-PP1
Start=6/5, B1=20000000, B2=2000000000
2021-04-23ATHNF-PP1
Start=2/7, B1=5000000, B2=500000000
2010-03-25BuckleF-ECM
Factor: 64658705994591851009055774868504577