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

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MnStatusDetails
213851489Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
68154677725268701437772272.52018-05-15 06:07:18
History
DateUserTypeResult
2018-05-15yponomarevF
Factor: 6815467772526870143777 / TF: 72-73
2018-05-14yponomarevNF
no factor from 2^71 to 2^72
2018-05-12Craig JohnsonNF
no factor from 2^70 to 2^71
2018-05-11Yves de WandelaarNF
no factor from 2^69 to 2^70
2017-12-06arnieNF
no factor from 2^68 to 2^69
2013-12-16america64NF
no factor from 2^67 to 2^68
2013-01-11america64NF
no factor from 2^66 to 2^67
2012-06-04america64NF
no factor from 2^65 to 2^66
2011-05-24Charles A. MorrisNF
no factor from 2^64 to 2^65