45 299 699 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 2⁷²

P-1

B1 =	495000
B2 =	11508750

Status	Date	User	Residue	Shift	Software
Bad	2011-12-14	Dubslow	7F1915D4DDC7D1D1	29212947	Linux 64-bit,Prime95,v26.6,build 3
Verified	2012-03-24	1997rj7	F6496D8CC78575D7	19989178	Windows 64-bit,Prime95,v26.4,build 1
Verified	2015-12-29	Mark Rose	F6496D8CC78575D7	31011	Linux 64-bit,Prime95,v28.6,build 1

History

Date	User	Type	Result
2015-12-31	BloodIce	NF	no factor TF: 73-74
2015-12-30	BloodIce	NF	no factor TF: 72-73
2015-12-29	Mark Rose	C-LL	F6496D8CC78575D7
2012-03-24	1997rj7	C-LL	F6496D8CC78575D7
2012-02-19	Greg	NF	no factor TF: 71-72
2012-02-19	Greg	NF	no factor TF: 70-71
2011-12-14	Dubslow	C-LL	7F1915D4DDC7D1D1
2011-11-28	Dubslow	NF-PM1	B1=495000, B2=11508750, E=12
2011-10-25	Dubslow	NF	no factor TF: 68-70
2007-12-03	TheJudger	NF	no factor TF: 1-68
2007-02-05	1997rj7	NF	no factor TF: 1-63