7 580 423 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 4 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶⁷

Factored

Factor	Digits	Bits	Date
8391749624512447	16	52.9	old
454409748257149049	18	58.7	2015-09-22 12:26:14
876418971582060871	18	59.6	2015-12-01 12:39:02
105005670968956951889	21	66.5	2020-04-29 10:19:27

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Factored	PRP without proof (not generated)	2018-03-10	kkmrkkblmbrbk	30BADB0A161CEDB9	3	3993876	5	3
Factored	PRP without proof (not generated)	2019-07-14	ATH	30BADB0A161CEDB9	3	6714139	5	3
Verified	PRP without proof (not generated)	2020-05-01	fre_games	30BADB0A161CEDB9	4	143937	5	3

History

Date	User	Type	Result
2024-02-15	Stef42	NF-PM1	B1=2500000, B2=3944850000
2022-03-21	LordJulius	NF	no factor TF: 65-66
2022-03-21	LordJulius	NF	no factor TF: 60-64
2022-03-21	LordJulius	NF	no factor TF: 64-65
2020-05-01	fre_games	C-PRP	M7580423/8391749624512447/454409748257149049/876418971582060871/105005670968956951889 : 30BADB0A161CEDB9
2020-04-29	TJAOI	F	Factor: 105005670968956951889
2019-07-14	ATH	C-PRP	M7580423/8391749624512447/454409748257149049/876418971582060871 : 30BADB0A161CEDB9
2018-03-10	kkmrkkblmbrbk	C-PRP	M7580423/454409748257149049/8391749624512447/876418971582060871 : 30BADB0A161CEDB9
2015-12-01	TJAOI	F	Factor: 876418971582060871
2015-09-22	TJAOI	F	Factor: 454409748257149049