45 678 559 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 2⁷³

TF target 2⁷²

P-1

B1 =	490000
B2 =	10290000

Status	Date	User	Residue	Shift	Software
Verified	2011-01-30	Richard_Prairie	2BE0B6729E068C91	43171588	Windows,Prime95,v24 final,(aka Wc1)
Verified	2016-09-10	kkmrkkblmbrbk	2BE0B6729E068C91	38482896	Linux 64-bit,Prime95,v28.9,build 2

History

Date	User	Type	Result
2017-12-29	ktony	NF	no factor TF: 72-73
2016-09-10	kkmrkkblmbrbk	C-LL	2BE0B6729E068C91
2015-08-31	wombatman	NF	no factor TF: 71-72
2015-08-31	wombatman	NF	no factor TF: 70-71
2011-01-30	Richard_Prairie	C-LL	2BE0B6729E068C91
2010-12-13	Richard_Prairie	NF-PM1	B1=490000, B2=10290000
2007-12-31	ahmerali	NF	no factor TF: 1-70
2007-02-05	1997rj7	NF	no factor TF: 1-63
2000-12-14	Joss	NF	no factor TF: 1-54