82 536 431 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 =	700000
B2 =	13825000

Status	Date	User	Residue	Shift	Software
Verified	2018-03-05	-anonymous-	CB396B63CABDBC92	42508272	Windows 64-bit,Prime95,v29.4,build 7
Verified	2025-08-18	christian_	CB396B63CABDBC92	5547891	Windows 64-bit,Prime95,v29.4,build 8

History

Date	User	Type	Result
2025-08-18	christian_	C-LL	CB396B63CABDBC92
2025-04-21	tbusby	NF	no factor TF: 75-76
2018-03-05	-anonymous-	C-LL	CB396B63CABDBC92
2017-08-07	The Mawn	NF-PM1	B1=700000, B2=13825000, E=6
2016-12-17	AirSquirrels	NF	no factor TF: 74-75
2016-12-16	AirSquirrels	NF	no factor TF: 73-74
2013-02-01	SWL551	NF	no factor TF: 72-73
2013-02-01	SWL551	NF	no factor TF: 71-72
2013-02-01	SWL551	NF	no factor TF: 70-71
2013-02-01	SWL551	NF	no factor TF: 69-70
2013-02-01	SWL551	NF	no factor TF: 68-69
2013-02-01	SWL551	NF	no factor TF: 67-68
2013-02-01	SWL551	NF	no factor TF: 66-67
2011-03-22	eon_blue_apocalypse	NF	no factor TF: 65-66
2010-12-14	Architects Cubed	NF	no factor TF: 64-65