44 378 077 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 =	535000
B2 =	14043750

Status	Date	User	Residue	Shift	Software
Bad	2009-11-14	eskifullofbeer	6443C3F544FC4551	14513038	Windows,Prime95,v25.9,build 4
Verified	2015-08-30	MadPoo 🙂	A18C195F5C63ECC0	10119918	Windows 64-bit,Prime95,v26,(aka We4)
Verified	2016-09-20	Mark Rose	A18C195F5C63ECC0	21303923	Linux 64-bit,Prime95,v28.9,build 2

History

Date	User	Type	Result
2024-08-18	Jarod McClintock	NF	no factor TF: 69-70
2022-04-10	TheJudger	NF	no factor TF: 73-74
2022-04-10	TheJudger	NF	no factor TF: 72-73
2016-09-20	Mark Rose	C-LL	A18C195F5C63ECC0
2015-08-30	MadPoo 🙂	C-LL	A18C195F5C63ECC0
2015-08-18	Sid & Andy	NF	no factor TF: 71-72
2015-08-18	Sid & Andy	NF	no factor TF: 70-71
2015-05-21	Architects Cubed	NF	no factor TF: 69-70
2014-02-07	LaurV	NF	no factor TF: 68-69
2009-11-14	eskifullofbeer	C-LL	6443C3F544FC4551
2009-10-15	eskifullofbeer	NF-PM1	B1=535000, B2=14043750
2007-10-17	precius1	NF	no factor TF: 1-68
2005-03-20	dave_0273	NF	no factor TF: 1-62