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
102280019Composite: 3 known prime factors
Factored
FactorDigitsBitsDate
204560039927.62007-09-17 22:08:42
51140009511032.32007-09-17 22:08:43
1247119150512907031856.82015-04-30 11:41:00
History
DateUserTypeResult
2015-04-30TJAOIF
Factor: 124711915051290703 / TF: 56-57