65 320 877 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 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	595000
B2 =	13238750

Status	Date	User	Residue	Shift	Software
Verified	2014-12-25	Kyle Z Schmidt	5B62481F88E08BC9	21579317	Windows 64-bit,Prime95,v28.5,build 2
Verified	2023-10-07	Team_Inspector	5B62481F88E08BC9	41643325	Windows 64-bit,Prime95,v30.5,build 2

History

Date	User	Type	Result
2023-10-07	Team_Inspector	C-LL	5B62481F88E08BC9
2022-03-06	Richard Thomas	NF	no factor TF: 74-75
2016-03-28	Mark Rose	NF	no factor TF: 60-63
2014-12-25	Kyle Z Schmidt	C-LL	5B62481F88E08BC9
2014-03-07	owftheevil	NF-PM1	B1=595000, B2=13238750, E=2
2014-03-05	A_Savchenko	NF	no factor TF: 73-74
2014-03-05	A_Savchenko	NF	no factor TF: 72-73
2012-09-14	MOmax	NF	no factor TF: 71-72
2012-09-14	MOmax	NF	no factor TF: 70-71
2012-01-24	NB	NF	no factor TF: 69-70
2010-09-13	Charles Spalton	NF	no factor TF: 68-69
2010-09-09	-anonymous-	NF	no factor TF: 67-68
2009-11-14	Stefan Priehse	NF	no factor TF: 66-67
2009-11-03	Sturle Sunde	NF	no factor TF: 65-66
2009-11-01	Sturle Sunde	NF	no factor TF: 64-65
2009-01-05	Wojciech Florek	NF	no factor TF: 63-64
2004-04-20	1997rj7	NF	no factor TF: 1-60
2003-11-08	Gordon Spence	NF	no factor TF: 1-59