63 735 821 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 =	590000
B2 =	14750000

Status	Date	User	Residue	Shift	Software
Verified	2014-03-20	-anonymous-	A935A413DDCE92A0	23396514	Windows Service,Prime95,v27.9,build 1
Verified	2023-06-18	Syntony	A935A413DDCE92A0	50494041	Windows 64-bit,Prime95,v30.7,build 9

History

Date	User	Type	Result
2023-06-18	Syntony	C-LL	A935A413DDCE92A0
2019-10-26	Jon Pace	NF	no factor TF: 74-75
2016-02-23	Mark Rose	NF	no factor TF: 59-63
2014-03-20	-anonymous-	C-LL	A935A413DDCE92A0
2013-10-12	owftheevil	NF-PM1	B1=590000, B2=14750000, E=6
2013-10-04	Kevin Jaget	NF	no factor TF: 73-74
2013-07-28	Bdot	NF	no factor TF: 72-73
2013-07-21	Phantomas	NF	no factor TF: 71-72
2012-11-03	Clown_Royal	NF	no factor TF: 70-71
2012-11-03	-anonymous-	NF	no factor TF: 70-71
2011-12-31	Luigi Morelli	NF	no factor TF: 69-70
2009-09-10	HBendtz	NF	no factor TF: 68-69
2009-09-09	HBendtz	NF	no factor TF: 67-68
2009-09-09	HBendtz	NF	no factor TF: 66-67
2009-09-09	HBendtz	NF	no factor TF: 65-66
2009-03-04	arnaud	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