44 792 863 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 =	525000
B2 =	9187500

Status	Date	User	Residue	Shift	Software
Bad	2010-01-26	Christian Geschwentner	44C18BB451C34187	30643910	Windows,Prime95,v25.9,build 4
Verified	2015-11-25	Greg	752E348BB4CEAF88	16690156	CUDALucas v2.05 Beta
Verified	2016-09-27	Mark Rose	752E348BB4CEAF88	28614191	Linux 64-bit,Prime95,v28.9,build 2

History

Date	User	Type	Result
2024-06-20	James Heinrich	NF	no factor TF: 69-70
2019-11-12	Sid & Andy	NF	no factor TF: 73-74
2018-08-03	-anonymous-	NF	no factor TF: 72-73
2016-09-27	Mark Rose	C-LL	752E348BB4CEAF88
2015-11-25	Greg	C-LL	752E348BB4CEAF88
2015-11-12	el grocco	NF	no factor TF: 71-72
2015-11-11	David Campeau	NF	no factor TF: 70-71
2015-08-04	Carsten Kossendey	NF	no factor TF: 69-70
2014-07-09	NR	NF	no factor TF: 68-69
2010-01-26	Christian Geschwentner	C-LL	44C18BB451C34187
2009-08-02	IgorMarx	NF-PM1	B1=525000, B2=9187500
2007-11-17	ITS	NF	no factor TF: 1-68