62 829 601 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 2⁷⁴

P-1

B1 =	580000
B2 =	14065000

Status	Date	User	Residue	Shift	Software
Verified	2014-06-22	Kyle Z Schmidt	9A0983EA768E5C18	2937699	Windows 64-bit,Prime95,v27.9,build 1
Verified	2022-10-30	NPC	9A0983EA768E5C18	712031	Windows Service,Prime95,v28.9,build 2

History

Date	User	Type	Result
2022-10-30	NPC	C-LL	9A0983EA768E5C18
2016-02-23	Mark Rose	NF	no factor TF: 59-63
2014-06-22	Kyle Z Schmidt	C-LL	9A0983EA768E5C18
2013-10-19	owftheevil	NF-PM1	B1=580000, B2=14065000, E=6
2013-08-16	TheJudger	NF	no factor TF: 73-74
2013-03-21	Chuck	NF	no factor TF: 72-73
2013-03-21	Chuck	NF	no factor TF: 71-72
2013-03-21	Chuck	NF	no factor TF: 70-71
2011-12-21	ITS	NF	no factor TF: 69-70
2009-12-30	Sturle Sunde	NF	no factor TF: 68-69
2009-12-27	Sturle Sunde	NF	no factor TF: 67-68
2009-12-26	Sturle Sunde	NF	no factor TF: 66-67
2009-08-16	unconnected	NF	no factor TF: 65-66
2009-08-15	unconnected	NF	no factor TF: 64-65
2009-02-01	Wojciech Florek	NF	no factor TF: 63-64
2003-07-13	Gordon Spence	NF	no factor TF: 1-59