44 795 549 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 =	540000
B2 =	14985000

Status	Date	User	Residue	Shift	Software
Bad	2009-07-31	Andrew	256D8E040482269E	5090249	Windows,Prime95,v25.9,build 4
Verified	2010-02-19	raymondf	6D0C1C8E566C64F0	5539896	Windows,Prime95,v24 final,(aka Wc1)
Verified	2016-09-27	Mark Rose	6D0C1C8E566C64F0	33575853	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
2018-08-04	-anonymous-	NF	no factor TF: 72-73
2016-09-27	Mark Rose	C-LL	6D0C1C8E566C64F0
2015-08-09	Greg	NF	no factor TF: 70-72
2015-08-04	Carsten Kossendey	NF	no factor TF: 69-70
2014-07-06	VictordeHollander	NF	no factor TF: 68-69
2010-02-19	raymondf	C-LL	6D0C1C8E566C64F0
2009-07-31	Andrew	C-LL	256D8E040482269E
2009-04-20	Andrew	NF-PM1	B1=540000, B2=14985000
2007-11-17	JC_Herles	NF	no factor TF: 1-68