80 499 997 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	680000
B2 =	13600000

Status	Date	User	Residue	Shift	Software
Verified	2018-08-18	curtisc	778F432E1FC0D949	13268446	Windows Service,Prime95,v28.7,build 1
Verified	2026-03-24	Torchwood Institute	778F432E1FC0D949	15311421	Windows 64-bit,Prime95,v30.7,build 9

History

Date	User	Type	Result
2026-03-24	Torchwood Institute	C-LL	778F432E1FC0D949
2025-11-13	Jurzal	NF	no factor TF: 75-76
2018-08-18	curtisc	C-LL	778F432E1FC0D949
2017-01-26	Kevin Jaget	NF-PM1	B1=680000, B2=13600000, E=12
2016-10-23	TheJudger	NF	no factor TF: 74-75
2016-10-23	TheJudger	NF	no factor TF: 73-74
2016-05-12	Judge Hale	NF	no factor TF: 72-73
2016-05-12	Judge Hale	NF	no factor TF: 71-72
2015-04-04	Ordinalux Inc.	NF	no factor TF: 70-71
2015-02-10	monst	NF	no factor TF: 70-71
2014-04-02	hkskyp	NF	no factor TF: 69-70
2014-04-02	hkskyp	NF	no factor TF: 68-69
2014-02-01	Bronzeman	NF	no factor TF: 67-68
2013-01-25	Salvetay	NF	no factor TF: 66-67
2011-01-26	mansky	NF	no factor TF: 65-66
2010-12-10	Architects Cubed	NF	no factor TF: 64-65