72 518 987 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
55758534038328437930129	23	75.6	2022-12-25 19:11:35

Status	Date	User	Residue	Shift
Verified (Factored)	2015-09-27	curtisc	74C60CB9FFDBF26B	39465927

History

Date	User	Type	Result
2022-12-25	RobertKazan	F	Factor: 55758534038328437930129 / TF: 75-76*
2015-09-27	curtisc	C-LL	74C60CB9FFDBF26B
2015-08-09	TheJudger	NF-PM1	B1=620000, B2=11935000
2015-07-26	TheJudger	NF	no factor from 2^74 to 2^75
2015-07-26	TheJudger	NF	no factor from 2^73 to 2^74
2015-07-26	TheJudger	NF	no factor from 2^72 to 2^73
2015-02-28	srow7	NF	no factor from 2^71 to 2^72
2013-11-30	Robish	NF	no factor from 2^70 to 2^71
2012-10-02	Bold_Seeker	NF	no factor from 2^69 to 2^70
2010-07-05	-Anonymous-	NF	no factor from 2^68 to 2^69
2010-07-02	John Tolly	NF	no factor from 2^67 to 2^68
2010-05-28	oodaira	NF	no factor from 2^66 to 2^67
2010-05-27	linded	NF	no factor from 2^65 to 2^66
2010-05-21	linded	NF	no factor from 2^64 to 2^65
2008-09-19	Wojciech Florek	NF	no factor to 2^64