44 981 243 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 =	760000
B2 =	760000

Status	Date	User	Residue	Shift	Software
Verified	2012-06-08	Dubslow	F67E5EDBB2F514C8	35091458	Linux 64-bit,Prime95,v27.7,build 2
Verified	2017-07-05	mrt	F67E5EDBB2F514C8	39599472	Windows 64-bit,Prime95,v27.9,build 1

History

Date	User	Type	Result
2018-06-03	Andrew B	NF	no factor TF: 72-73
2017-07-05	mrt	C-LL	F67E5EDBB2F514C8
2012-06-08	Dubslow	C-LL	F67E5EDBB2F514C8
2012-05-14	kdgehman	NF	no factor TF: 71-72
2012-05-14	kdgehman	NF	no factor TF: 70-71
2012-05-14	kdgehman	NF	no factor TF: 69-70
2012-05-14	kdgehman	NF	no factor TF: 68-69
2009-07-10	-anonymous-	NF-PM1	B1=760000
2007-11-17	-anonymous-	NF	no factor TF: 1-68
2007-11-17	ComputerraRU	NF	no factor TF: 63-64