76 550 207 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 =	665000
B2 =	13300000

Status	Date	User	Residue	Shift
Unverified	2016-09-18	ChavdarLalov	D4E679E74CA2DD__	5549432

Status	Date	User	Residue	Shift	Type	Base
Verified	2024-10-20	Luke Durant	E8C14219AA9058B9	0	1	3

History

Date	User	Type	Result
2024-10-20	James Heinrich	CERT	PRP Certification CERT proof power = 8 Proof certified good
2024-10-20	Luke Durant	C-PRP	E8C14219AA9058B9 PRP proof power = 8 PRP: Verified Proof certified good
2016-09-18	ChavdarLalov	C-LL	D4E679E74CA2DD__
2016-03-28	TheJudger	NF-PM1	B1=665000, B2=13300000, E=12
2016-03-20	AirSquirrels	NF	no factor from 2^74 to 2^75
2016-03-20	AirSquirrels	NF	no factor from 2^73 to 2^74
2011-09-12	DRH	NF	no factor from 2^72 to 2^73
2011-09-12	DRH	NF	no factor from 2^71 to 2^72
2011-09-12	DRH	NF	no factor from 2^70 to 2^71
2011-09-12	DRH	NF	no factor from 2^69 to 2^70
2011-09-12	DRH	NF	no factor from 2^68 to 2^69
2011-09-12	DRH	NF	no factor from 2^67 to 2^68
2011-05-16	Carsten Kossendey	NF	no factor from 2^66 to 2^67
2010-11-09	Ethan O'Connor	NF	no factor from 2^65 to 2^66
2010-09-06	Geir S. Eidissen	NF	no factor from 2^64 to 2^65