82 859 239 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 =	675000
B2 =	12825000

Status	Date	User	Residue	Shift	Software
Verified	2019-03-16	xx005fs	6851262DB12B2218	41435417	CUDALucas v2.06beta
Verified	2019-05-08	-anonymous-	6851262DB12B2218	41843927	Windows 64-bit,Prime95,v28.9,build 2
Verified	2019-06-14	Arthur Rosenthal	6851262DB12B2218	45152631	Windows 64-bit,Prime95,v29.4,build 8

History

Date	User	Type	Result
2019-06-14	Arthur Rosenthal	C-LL	6851262DB12B2218
2019-05-08	-anonymous-	C-LL	6851262DB12B2218
2019-03-16	xx005fs	C-LL	6851262DB12B2218
2017-02-26	TheJudger	NF-PM1	B1=675000, B2=12825000, E=6
2016-12-28	Sebastian Hornbostel	NF	no factor TF: 75-76
2016-12-19	Chris Smith	NF	no factor TF: 74-75
2016-11-20	gcardona	NF	no factor TF: 73-74
2016-11-20	gcardona	NF	no factor TF: 72-73
2016-11-20	gcardona	NF	no factor TF: 71-72
2013-12-01	David_Dirkx	NF	no factor TF: 70-71
2013-11-07	SMoffat	NF	no factor TF: 69-70
2013-10-31	Juergen Kampmeier	NF	no factor TF: 68-69
2013-02-09	RHMash	NF	no factor TF: 67-68
2013-02-03	rjbelans	NF	no factor TF: 66-67
2011-03-29	KarlMJ	NF	no factor TF: 65-66
2010-12-16	Architects Cubed	NF	no factor TF: 64-65