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
207570809Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
21317224192370445177832270.92019-11-22 09:11:58
History
DateUserTypeResult
2025-05-03James HeinrichF
Factor: 2131722419237044517783 / TF: 70-71
2024-03-17James HeinrichNF
no factor from 2^1 to 2^69
2019-11-22NickF
Factor: 2131722419237044517783 / TF: 70-71
2019-01-29Chabot PrimeNF
no factor from 2^69 to 2^70
2017-01-06SADMASTERNF
no factor from 2^68 to 2^69
2015-10-29ConductorNF
no factor from 2^67 to 2^68
2015-09-27rob147147NF
no factor from 2^66 to 2^67
2013-08-04lindeeNF
no factor from 2^65 to 2^66
2011-05-11impsNF
no factor from 2^64 to 2^65