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
188279083Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
20556249389626481320072270.82019-07-21 19:40:43
History
DateUserTypeResult
2019-07-21Smok_bmv F
Factor: 2055624938962648132007 / TF: 70-71
2017-08-30RichardNF
no factor from 2^68 to 2^69
2017-08-16YxinityNF
no factor from 2^69 to 2^70
2017-08-16YxinityNF
no factor from 2^68 to 2^69
2016-07-28rubikvn2100NF
no factor from 2^67 to 2^68
2015-08-22Jan KuipersNF
no factor from 2^66 to 2^67
2013-05-28MucolNF
no factor from 2^65 to 2^66
2011-04-06dslNF
no factor from 2^64 to 2^65
2010-07-31oodairaNF
no factor from 2^63 to 2^64