Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
101818957Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
284044083371381472140786092684.62020-12-28 20:07:19
P-1 factors
DateFactorB1B2
2020-12-28284044083371381472140786097340000
History
DateUserTypeResult
2020-12-28Denis PorvaF-PM1
Factor: 28404408337138147214078609 / (P-1, B1=734000)
2020-01-29TheJudgerNF
no factor from 2^75 to 2^76
2020-01-29TheJudgerNF
no factor from 2^74 to 2^75
2020-01-26RichD0NF
no factor from 2^72 to 2^74
2015-12-27MooseZeroNF
no factor from 2^71 to 2^72
2013-09-12CSLatDDNF
no factor from 2^70 to 2^71
2013-09-08CSLatDDNF
no factor from 2^69 to 2^70
2013-09-06OS1NF
no factor from 2^68 to 2^69
2013-09-03Duane BongNF
no factor from 2^67 to 2^68
2013-09-01-Anonymous-NF
no factor from 2^66 to 2^67
2012-04-21RichardNF
no factor from 2^65 to 2^66
2010-08-15oodairaNF
no factor from 2^64 to 2^65
2010-04-021997rj7NF
no factor from 2^63 to 2^64