74 358 619 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with PRP test

TF

No factors below 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	645000
B2 =	12900000

Status	Date	User	Residue	Shift
Unverified	2016-07-11	-Anonymous-	8305D4C2BF4C66__	21958060

Status	Date	User	Residue	Shift	Type	Base
Verified	2024-11-26	Luke Durant	F060593749A55799	0	1	3

History

Date	User	Type	Result
2024-11-26	BA24Cx	CERT	PRP Certification CERT proof power = 9 Proof certified good
2024-11-26	Luke Durant	C-PRP	F060593749A55799 PRP proof power = 9 PRP: Verified Proof certified good
2016-07-11	-Anonymous-	C-LL	8305D4C2BF4C66__
2015-07-26	TheJudger	NF-PM1	B1=645000, B2=12900000, E=12
2015-07-20	fre_games	NF	no factor from 2^74 to 2^75
2015-07-20	fre_games	NF	no factor from 2^73 to 2^74
2015-07-20	fre_games	NF	no factor from 2^72 to 2^73
2015-07-20	fre_games	NF	no factor from 2^71 to 2^72
2013-07-05	Le Comte	NF	no factor from 2^70 to 2^71
2013-06-03	tsc	NF	no factor to 2^70
2010-07-17	Los Alcoholicos~jpiwf	NF	no factor from 2^68 to 2^69
2010-07-16	dtlgc	NF	no factor from 2^67 to 2^68
2010-07-12	symallad	NF	no factor from 2^66 to 2^67
2010-07-08	eon_blue_apocalypse	NF	no factor from 2^65 to 2^66
2010-07-05	xkey	NF	no factor from 2^64 to 2^65
2008-09-12	lycorn	NF	no factor to 2^64