977 348 621 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite: 4 known prime factors

Factored

Factor	Digits	Bits	Date
4386340611049	13	42.0	2008-05-28 22:16:14
2565618318014681	16	51.2	2008-05-28 22:16:14
207917109181735271	18	57.5	2015-06-26 11:21:36
1954147563543274423	19	60.8	2015-12-23 16:34:06

History

Date	User	Type	Result
2023-05-28	mikr	NF	no factor from 2^67 to 2^73
2015-12-23	Conductor	F	Factor: 1954147563543274423 / TF: 1-62
2015-06-26	TJAOI	F	Factor: 207917109181735271 / TF: 57-58

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