63 579 323 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 =	565000
B2 =	10452500

Status	Date	User	Residue	Shift	Software
Verified	2014-08-31	Kyle Z Schmidt	091DDA5A9A1737F9	13621085	Windows 64-bit,Prime95,v27.9,build 1
Verified	2022-07-27	chisey	091DDA5A9A1737F9	45810231	Windows 64-bit,Prime95,v29.4,build 8

History

Date	User	Type	Result
2022-07-27	chisey	C-LL	091DDA5A9A1737F9
2016-02-23	Mark Rose	NF	no factor TF: 59-63
2014-08-31	Kyle Z Schmidt	C-LL	091DDA5A9A1737F9
2013-10-11	Team_Inspector	NF-PM1	B1=565000, B2=10452500
2013-09-22	TheJudger	NF	no factor TF: 73-74
2013-03-03	Jerry Hallett	NF	no factor TF: 72-73
2013-03-03	Jerry Hallett	NF	no factor TF: 71-72
2012-11-07	Per Jessen	NF	no factor TF: 70-71
2012-01-05	ITS	NF	no factor TF: 69-70
2009-08-31	FCG Primes	NF	no factor TF: 68-69
2009-03-13	-anonymous-	NF	no factor TF: 67-68
2009-03-07	-anonymous-	NF	no factor TF: 66-67
2009-03-03	-anonymous-	NF	no factor TF: 65-66
2009-03-02	sasaki3	NF	no factor TF: 64-65
2009-02-24	Wojciech Florek	NF	no factor TF: 63-64
2003-08-25	Gordon Spence	NF	no factor TF: 1-59