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
203872393Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1037260139591194950072166.52015-09-30 16:53:05
History
DateUserTypeResult
2024-03-17GregF
Factor: 103726013959119495007 / TF: 1-70
2024-03-13James HeinrichNF
no factor from 2^70 to 2^71
2015-09-30ConductorF
Factor: 103726013959119495007 / TF: 66-67
2013-07-27RichardNF
no factor from 2^65 to 2^66
2011-05-06kiwiboyNF
no factor from 2^64 to 2^65