45 305 951 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 2⁷⁵

TF target 2⁷²

P-1

B1 =	505000
B2 =	6312500

Status	Date	User	Residue	Shift	Software
Bad	2011-09-04	Jon Pace	84A74F114D9FD560	41140626	Windows,Prime95,v25.11,build 2
Bad	2017-07-14	Calvin Moes	C80370A6804C71B5	39081388	Windows 64-bit,Prime95,v28.10,build 1
Verified	2017-10-18	griffmiester	F242B05F8E8411E5	9203835	Windows 64-bit,Prime95,v27.9,build 1
Verified	2017-10-20	MadPoo 🙂	F242B05F8E8411E5	23556869	Windows 64-bit,Prime95,v29.3,(aka Wf4)

History

Date	User	Type	Result
2020-05-08	Sid & Andy	NF	no factor TF: 74-75
2019-12-20	-anonymous-	NF	no factor TF: 73-74
2018-07-29	-anonymous-	NF	no factor TF: 72-73
2017-10-20	MadPoo 🙂	C-LL	F242B05F8E8411E5
2017-10-18	griffmiester	C-LL	F242B05F8E8411E5
2017-07-14	Calvin Moes	C-LL	C80370A6804C71B5
2015-10-23	-anonymous-	NF	no factor TF: 71-72
2015-10-23	-anonymous-	NF	no factor TF: 70-71
2015-07-09	Sid & Andy	NF	no factor TF: 69-70
2014-08-06	Andrew B	NF	no factor TF: 68-69
2011-09-04	Jon Pace	C-LL	84A74F114D9FD560
2011-07-10	Jon Pace	NF-PM1	B1=505000, B2=6312500
2007-12-18	korva	NF	no factor TF: 1-68
2007-12-03	ComputerraRU	NF	no factor TF: 64-65
2007-12-03	korva	NF	no factor TF: 1-68
2007-02-05	1997rj7	NF	no factor TF: 1-63