80 593 489 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 Lucas-Lehmer test

TF

No factors below 2⁷⁵

TF target 2⁷⁵

P-1

B1 =	695000
B2 =	13205000

Status	Date	User	Residue	Shift
Verified	2018-07-06	karcsika	3796582B50AEDE1C	74714301
Verified	2024-11-26	paulrector	3796582B50AEDE1C	13243242

History

Date	User	Type	Result
2024-11-26	paulrector	C-LL	3796582B50AEDE1C
2018-07-06	karcsika	C-LL	3796582B50AEDE1C
2016-05-25	James Heinrich	NF-PM1	B1=695000, B2=13205000
2016-05-22	CacheOut	NF	no factor from 2^74 to 2^75
2016-05-22	CacheOut	NF	no factor from 2^73 to 2^74
2016-05-22	CacheOut	NF	no factor from 2^72 to 2^73
2016-05-22	CacheOut	NF	no factor from 2^71 to 2^72
2013-07-17	g0b	NF	no factor from 2^70 to 2^71
2013-06-12	frmar	NF	no factor from 2^69 to 2^70
2013-06-06	Manpowre	NF	no factor from 2^68 to 2^69
2013-02-16	symallad	NF	no factor from 2^67 to 2^68
2013-01-26	phoenicis	NF	no factor from 2^66 to 2^67
2011-03-30	carlos56	NF	no factor from 2^65 to 2^66
2010-12-10	Architects Cubed	NF	no factor from 2^64 to 2^65