49 388 579 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: 1 known prime factor

Factored

Factor	Digits	Bits	Date
973168879520042620663	21	69.7	2015-08-27 16:00:19

Status	Date	User	Residue	Shift
Verified (Factored)	2011-08-07	curtisc	34BB0BF0CB090CFE	43898923

History

Date	User	Type	Result
2025-06-23	James Heinrich	F	Factor: 973168879520042620663 / TF: 69-70
2015-08-27	LaurV	F	Factor: 973168879520042620663 / TF: 69-70*
2011-08-07	curtisc	C-LL	34BB0BF0CB090CFE
2011-06-19	curtisc	NF-PM1	B1=785000
2008-06-03	-Anonymous-	NF	no factor to 2^64

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