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
181156561Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
73697813035780870240632272.62019-05-15 04:29:57
History
DateUserTypeResult
2019-05-15Smok_bmv F
Factor: 7369781303578087024063 / TF: 72-73*
2019-04-30Smok_bmv NF
no factor from 2^71 to 2^72
2019-04-26Stefan SeidelNF
no factor from 2^70 to 2^71
2018-10-01Chabot PrimeNF
no factor from 2^69 to 2^70
2017-07-10p1erssonNF
no factor from 2^68 to 2^69
2016-07-05crushburnrestartNF
no factor from 2^67 to 2^68
2015-07-27tscNF
no factor from 2^66 to 2^67
2013-05-04sannerud.comNF
no factor from 2^65 to 2^66
2011-03-21sasaki3NF
no factor from 2^64 to 2^65
2010-07-23MarzbugNF
no factor from 2^63 to 2^64