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
999891923Composite: 3 known prime factors
Factored
FactorDigitsBitsDate
19997838471030.92008-05-05 06:14:26
265491303394971444.62012-07-10 12:14:57
15435984204813465191960.42015-12-26 16:38:36
History
DateUserTypeResult
2025-03-12mikrNF
no factor from 2^69 to 2^71
2022-07-21onlinegameNF
no factor from 2^68 to 2^69
2022-04-07James HeinrichF
Factor: 1543598420481346519 / TF: 1-67
2022-04-07James HeinrichF
Factor: 26549130339497 / TF: 1-67
2022-04-07James HeinrichF
Factor: 1999783847 / TF: 1-67
2021-12-22ViliamFNF
no factor from 2^67 to 2^68
2015-12-26ConductorF
Factor: 1543598420481346519 / TF: 1-62
2012-07-10TF to low limitsF
Factor: 26549130339497