44 498 599 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 =	755000
B2 =	755000

Status	Date	User	Residue	Shift	Software
Bad	2011-05-12	chooligan	4999AC1B5BE3397F	19925125	Linux 64-bit,Prime95,v26.5,build 5
Verified	2015-10-06	cuBerBruce	39415273CB43F18F	920425	Windows 64-bit,Prime95,v28.7,build 1
Verified	2016-11-15	-anonymous-	39415273CB43F18F	5164296	Windows 64-bit,Prime95,v28.7,build 1

History

Date	User	Type	Result
2024-06-19	James Heinrich	NF	no factor TF: 69-70
2022-04-09	RichD0	NF	no factor TF: 72-73
2016-11-15	-anonymous-	C-LL	39415273CB43F18F
2015-10-06	cuBerBruce	C-LL	39415273CB43F18F
2015-08-18	Sid & Andy	NF	no factor TF: 71-72
2015-08-18	Sid & Andy	NF	no factor TF: 70-71
2015-07-17	Carsten Kossendey	NF	no factor TF: 69-70
2014-02-16	LaurV	NF	no factor TF: 68-69
2011-05-12	chooligan	C-LL	4999AC1B5BE3397F
2009-10-16	ANONYMOUS	NF-PM1	B1=755000
2007-10-17	Said	NF	no factor TF: 1-68