Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
281827109Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2560882219892664174492167.82016-11-15 18:22:19
History
DateUserTypeResult
2016-11-15Alex_soldierF
Factor: 256088221989266417449 / TF: 67-68
2016-01-21ANONYMOUSNF
no factor from 2^66 to 2^67
2013-12-13Luigi R.NF
no factor from 2^65 to 2^66
2011-09-16Damian SilvestreNF
no factor from 2^64 to 2^65
2010-04-12Carsten KossendeyNF
no factor from 2^63 to 2^64
2010-04-12Carsten KossendeyNF
no factor from 2^62 to 2^63