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
189437089Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
12719909846265603207132270.12015-08-26 04:55:29
History
DateUserTypeResult
2015-08-26demfloroF
Factor: 1271990984626560320713 / TF: 70-71
2015-08-26demfloroNF
no factor from 2^69 to 2^70
2015-08-26demfloroNF
no factor from 2^68 to 2^69
2015-08-26demfloroNF
no factor from 2^66 to 2^68
2013-06-06RichardNF
no factor from 2^65 to 2^66
2011-04-08oodairaNF
no factor from 2^64 to 2^65
2010-08-01OS1NF
no factor from 2^63 to 2^64