64 484 597 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 =	11310000

Status	Date	User	Residue	Shift	Software
Verified	2014-10-21	Kyle Z Schmidt	E3C37B76BFADC2FD	29932297	Windows 64-bit,Prime95,v28.5,build 2
Verified	2022-02-08	iwes	E3C37B76BFADC2FD	57709279	Windows 64-bit,Prime95,v30.7,build 9
Verified	2022-02-08	iwes	E3C37B76BFADC2FD	28166899	Windows 64-bit,Prime95,v30.7,build 9

History

Date	User	Type	Result
2022-02-08	iwes	C-LL	E3C37B76BFADC2FD
2022-02-08	iwes	C-LL	E3C37B76BFADC2FD
2016-02-23	Mark Rose	NF	no factor TF: 60-63
2014-10-21	Kyle Z Schmidt	C-LL	E3C37B76BFADC2FD
2013-12-15	TheJudger	NF-PM1	B1=580000, B2=11310000, E=6
2013-12-08	Bdot	NF	no factor TF: 73-74
2013-11-10	LingUaan	NF	no factor TF: 72-73
2013-09-29	Risto A. Paju	NF	no factor TF: 71-72
2012-06-04	gkpz	NF	no factor TF: 70-71
2012-01-10	Stephan Grupp	NF	no factor TF: 69-70
2009-09-20	Rachelle Wooten	NF	no factor TF: 68-69
2009-03-27	linded	NF	no factor TF: 67-68
2009-03-13	Sturle Sunde	NF	no factor TF: 66-67
2009-03-11	Sturle Sunde	NF	no factor TF: 65-66
2009-03-10	Sturle Sunde	NF	no factor TF: 64-65
2009-03-09	Myles	NF	no factor TF: 63-64
2004-01-27	AxelFox	NF	no factor TF: 1-60
2003-09-21	Gordon Spence	NF	no factor TF: 1-59