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
151320049Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
19805934480589901963512270.72017-08-06 02:28:44
History
DateUserTypeResult
2024-05-06GregNF
no factor from 2^68 to 2^69
2017-08-06Sergey NosovF
Factor: 1980593448058990196351 / TF: 69-72*
2016-07-20Josh FamestadNF
no factor from 2^68 to 2^69
2016-04-20Khalid al-HazmiNF
no factor from 2^67 to 2^68
2015-03-23vwflat4NF
no factor from 2^66 to 2^67
2013-01-17SalvetayNF
no factor from 2^65 to 2^66
2011-01-14Charles A. MorrisNF
no factor from 2^64 to 2^65
2010-06-23James HintzNF
no factor from 2^63 to 2^64