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
27760451Factored
FactorDigitsBitsDate
55520903825.7old
22699165573691341.02008-09-08 23:36:35
7958621488829211549.52014-04-30 11:38:14
12734608844888190971960.12016-01-15 13:04:48
6993946515024770057776210572789.22022-05-19 22:33:36
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^61 is very unlikely to find new factors due to ECM effort.
P-1 factors
DateFactorB1B2
2022-05-1969939465150247700577762105728500034496700
History
DateUserTypeResult
2024-02-02masserNF-PP1
Start=2/7, B1=50000, B2=5000000
2023-12-06masserNF
no factor from 2^71 to 2^72
2022-10-29masserNF
no factor from 2^69 to 2^71
2022-08-10LordJuliusNF
no factor from 2^67 to 2^68
2022-08-10LordJuliusNF
no factor from 2^66 to 2^67
2022-08-10LordJuliusNF
no factor from 2^65 to 2^66
2022-08-03masserNF
no factor from 2^67 to 2^69
2022-05-19masserF-PM1
Factor: 699394651502477005777621057 / (P-1, B1=285000, B2=34496700)
2016-01-15TJAOIF
Factor: 1273460884488819097 / TF: 60-61
2014-04-30TJAOIF
Factor: 795862148882921
2008-09-08Will EdgingtonF
Factor: 2269916557369