63 802 577 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 =	575000
B2 =	11356250

Status	Date	User	Residue	Shift	Software
Verified	2014-09-05	Kyle Z Schmidt	A4D056E73BDD0066	54101089	Windows 64-bit,Prime95,v27.9,build 1
Verified	2023-02-26	Sierpinski	A4D056E73BDD0066	11850168	Linux 64-bit,Prime95,v30.8,build 16

History

Date	User	Type	Result
2023-02-26	Sierpinski	C-LL	A4D056E73BDD0066
2022-12-04	tottenhoff	NF	no factor TF: 74-75
2016-02-23	Mark Rose	NF	no factor TF: 59-63
2014-09-05	Kyle Z Schmidt	C-LL	A4D056E73BDD0066
2013-10-20	TheJudger	NF-PM1	B1=575000, B2=11356250, E=6
2013-10-13	GrunwalderGIMP	NF	no factor TF: 73-74
2013-07-31	TheJudger	NF	no factor TF: 72-73
2013-07-31	TheJudger	NF	no factor TF: 71-72
2012-09-11	Bold_Seeker	NF	no factor TF: 70-71
2012-06-16	-anonymous-	NF	no factor TF: 69-70
2010-04-28	Sunfish	NF	no factor TF: 68-69
2009-03-15	Thomas Sprenger	NF	no factor TF: 67-68
2009-03-14	Thomas Sprenger	NF	no factor TF: 66-67
2009-03-10	Thomas Sprenger	NF	no factor TF: 65-66
2009-03-04	Thomas Sprenger	NF	no factor TF: 64-65
2009-02-27	Wojciech Florek	NF	no factor TF: 63-64
2003-08-25	Gordon Spence	NF	no factor TF: 1-59