50 062 213 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 2⁷⁴

TF target 2⁷³

P-1

B1 =	280000
B2 =	5530000

Status	Date	User	Residue	Shift	Software
Verified	2010-07-10	Stephan Grupp	79229CE8FBE606F3	6350019	Windows,Prime95,v25.11,build 2
Verified	2020-02-06	Dubslow	79229CE8FBE606F3	26875979	Linux 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2020-02-06	Dubslow	C-LL	79229CE8FBE606F3
2018-04-16	Oliver Kruse	NF	no factor TF: 73-74
2016-01-01	AirSquirrels	NF	no factor TF: 72-73
2015-10-09	monst	NF	no factor TF: 71-72
2015-10-09	monst	NF	no factor TF: 70-71
2014-12-18	monst	NF	no factor TF: 69-70
2010-10-05	Commaster	NF-PM1	B1=280000, B2=5530000
2010-07-10	Stephan Grupp	C-LL	79229CE8FBE606F3
2008-09-23	tryptamine dreamer	NF	no factor TF: 66-67
2008-09-23	tryptamine dreamer	NF	no factor TF: 65-66
2008-09-23	tryptamine dreamer	NF	no factor TF: 67-68
2008-09-23	tryptamine dreamer	NF	no factor TF: 68-69
2008-09-06	tryptamine dreamer	NF	no factor TF: 64-65
2008-07-10	George Woltman	NF	no factor TF: 1-64
2000-03-27	-anonymous-	NF	no factor TF: 1-60
2000-02-09	-anonymous-	NF	no factor TF: 1-54
1999-12-30	-anonymous-	NF	no factor TF: 1-53
1999-10-07	-anonymous-	NF	no factor TF: 1-53