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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MnStatusDetails
Fermat F18Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
13631489823.71903
812746907038605125877772376.11999-04-16
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000020026 / 40830
Estimated T-Level: 52.5 ⓘ
TF below 2^169 is very unlikely to find new factors due to ECM effort.
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2024-09-22Catherine Cowiefactor ECM smallC6S26.37 % 2024-10-25
2021-07-30Peter_Crea_14factor ECM smallC1S16.62 % 2024-10-03
History
DateUserTypeResult
2024-10-10yuriy5-1NF-PM1
B1=110000000, B2=44005624552890
2021-05-02ATHNF-PP1
Start=6/5, B1=200000000, B2=20000000000
2021-04-23ATHNF-PP1
Start=2/7, B1=50000000, B2=5000000000