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
161489219Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1572529127186291202660792477.12025-09-13 17:34:25
History
DateUserTypeResult
2025-09-13GregF
Factor: 157252912718629120266079 / TF: 76-78
2024-09-01SRBaseNF
no factor from 2^75 to 2^76
2023-03-04SRBaseNF
no factor from 2^74 to 2^75
2021-11-27SRBaseNF
no factor from 2^73 to 2^74
2018-07-01Damian SilvestreNF
no factor from 2^72 to 2^73
2018-07-01arnaudNF
no factor from 2^71 to 2^72
2018-07-01S36049NF
no factor from 2^70 to 2^71
2018-06-25proxy2222NF
no factor from 2^69 to 2^70
2017-03-30XolotlNF
no factor from 2^68 to 2^69
2016-03-23XZTNF
no factor from 2^67 to 2^68
2015-05-07bamNF
no factor from 2^66 to 2^67
2013-02-26sasaki3NF
no factor from 2^65 to 2^66
2011-02-05RichardNF
no factor from 2^64 to 2^65
2010-06-30sannerud.comNF
no factor from 2^63 to 2^64