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
Fermat F15Factored
FactorDigitsBitsDate
12142510091030.21925
23270425038684171651.01987-08-04
16876881702951697238302412701696133107.11997-07-03
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000040830 / 40830
60260000000105362 / 105362
65800000000145490 / 194238
Estimated T-Level: 63.7 ⓘ
TF below 2^207 is very unlikely to find new factors due to ECM effort.
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2024-03-14Catherine Cowiefactor ECM smallC77S11.80 % 2024-04-28
History
DateUserTypeResult
2021-05-01ATHNF-PP1
Start=6/5, B1=4000000000, B2=200000000000
2021-04-22ATHNF-PP1
Start=2/7, B1=500000000, B2=50000000000