49 646 423 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
38116240763093988857927	23	75.0	2021-10-12 15:36:40

Status	Date	User	Residue	Shift
Verified (Factored)	2011-10-30	SteveB	EEEC97093814F079	7497177
Verified (Factored)	2019-08-24	Sergey Nosov	EEEC97093814F079	48216375

History

Date	User	Type	Result
2021-10-12	Anton Repko	F	Factor: 38116240763093988857927 / TF: 75-76
2021-08-31	Sid & Andy	NF	no factor from 2^74 to 2^75
2021-05-11	Sid & Andy	NF-PM1	B1=1500000, B2=45000000
2019-08-24	Sergey Nosov	C-LL	EEEC97093814F079
2018-12-23	-Anonymous-	NF	no factor from 2^73 to 2^74
2018-02-05	monst	NF	no factor from 2^72 to 2^73
2015-11-23	dragonbud20	NF	no factor from 2^71 to 2^72
2015-09-22	LaurV	NF	no factor from 2^70 to 2^71
2015-07-17	Gordon Spence	NF	no factor from 2^69 to 2^70
2011-10-30	SteveB	C-LL	EEEC97093814F079
2011-10-01	SteveB	NF-PM1	B1=575000, B2=14518750, E=6