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
198181033Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
71489566300285019856232272.62019-05-31 15:00:15
History
DateUserTypeResult
2019-05-31Samuel SchmidtF
Factor: 7148956630028501985623 / TF: 72-73
2019-05-16Samuel SchmidtNF
no factor from 2^71 to 2^72
2019-02-15Niels_Mache_NextcloudNF
no factor from 2^70 to 2^71
2018-12-24Chabot PrimeNF
no factor from 2^69 to 2^70
2017-09-08rubikvn2100NF
no factor from 2^68 to 2^69
2016-08-13XZTNF
no factor from 2^67 to 2^68
2015-09-19HBendtzNF
no factor from 2^66 to 2^67
2013-07-05ZIM30NF
no factor from 2^65 to 2^66
2011-04-26sasaki3NF
no factor from 2^64 to 2^65
2010-09-101997rj7NF
no factor from 2^63 to 2^64