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
61040963Factored
FactorDigitsBitsDate
972619028384424241349512376.42013-04-06 07:04:15
P-1 factors
DateFactorB1B2
2013-04-069726190283844242413495157500010781250
History
DateUserTypeResult
2022-03-29LordJuliusNF
no factor from 2^62 to 2^63
2013-04-06Jwb52zF-PM1
Factor: 97261902838442424134951
2013-01-14ktonyNF
no factor from 2^70 to 2^73
2011-11-01Roy OswaldNF
no factor from 2^69 to 2^70
2009-07-11floundersNF
no factor from 2^68 to 2^69
2009-03-09-Anonymous-NF
no factor from 2^67 to 2^68
2009-03-08oodairaNF
no factor from 2^66 to 2^67
2009-03-07nailsssNF
no factor from 2^65 to 2^66
2009-02-26-Anonymous-NF
no factor from 2^64 to 2^65
2009-02-25jpinedaNF
no factor from 2^63 to 2^64