82 169 393 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 =	685000
B2 =	13015000

Status	Date	User	Residue	Shift	Software
Verified	2017-10-23	patgie	A3316776C9B8D377	36022046	Windows 64-bit,Prime95,v26,(aka We4)
Verified	2026-01-21	-anonymous-	A3316776C9B8D377	47994167	Windows 64-bit,Prime95,v28.7,build 1

History

Date	User	Type	Result
2026-01-21	-anonymous-	C-LL	A3316776C9B8D377
2025-10-22	Sid & Andy	NF	no factor TF: 75-76
2017-10-23	patgie	C-LL	A3316776C9B8D377
2017-07-03	Jwb52z	NF-PM1	B1=685000, B2=13015000
2016-12-04	The Mawn	NF	no factor TF: 74-75
2016-11-29	gcardona	NF	no factor TF: 73-74
2016-11-21	Judge Hale	NF	no factor TF: 72-73
2016-09-09	tmorrow	NF	no factor TF: 71-72
2014-03-14	AMR	NF	no factor TF: 70-71
2011-04-03	Martyn Fryer	NF	no factor TF: 69-70
2011-03-25	GrunwalderGIMP	NF	no factor TF: 68-69
2011-03-24	Ashish Sadanandan	NF	no factor TF: 67-68
2011-03-15	timweakley	NF	no factor TF: 66-67
2011-03-11	timweakley	NF	no factor TF: 65-66
2010-12-16	Architects Cubed	NF	no factor TF: 64-65