44 710 943 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 =	1000000
B2 =	20000000

Status	Date	User	Residue	Shift	Software
Bad	2010-06-19	Per Jessen	F0EA30B7C02D212E	21854466	Linux 32-bit,Prime95,v25.9,build 4
Verified	2011-10-10	trimix	C99FC40D7592E59A	8644344	Windows 64-bit,Prime95,v26.6,build 3
Verified	2016-09-20	Mark Rose	C99FC40D7592E59A	38065025	Linux 64-bit,Prime95,v28.9,build 2

History

Date	User	Type	Result
2024-06-20	James Heinrich	NF	no factor TF: 69-70
2019-11-10	Sid & Andy	NF	no factor TF: 73-74
2019-08-07	Sid & Andy	NF-PM1	B1=1000000, B2=20000000, E=12
2018-08-03	-anonymous-	NF	no factor TF: 72-73
2016-09-20	Mark Rose	C-LL	C99FC40D7592E59A
2015-08-19	Sid & Andy	NF	no factor TF: 71-72
2015-08-09	Mark Rose	NF	no factor TF: 70-71
2015-07-30	Carsten Kossendey	NF	no factor TF: 69-70
2014-06-29	VictordeHollander	NF	no factor TF: 68-69
2011-10-10	trimix	C-LL	C99FC40D7592E59A
2010-06-19	Per Jessen	C-LL	F0EA30B7C02D212E
2010-02-16	-anonymous-	NF-PM1	B1=755000
2007-11-17	ITS	NF	no factor TF: 1-68