44 695 787 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 =	535000
B2 =	14578750

Status	Date	User	Residue	Shift	Software
Bad	2009-02-23	Andrey Kurgannikov	6DEC00A359287228	15914044	Windows,Prime95,v25.7,build 3
Verified	2016-01-08	MadPoo 🙂	8810F4AEEAC40FF8	7193593	Windows 64-bit,Prime95,v26,(aka We4)
Bad	2016-10-19	AirSquirrels	1A975BD565E655A4	40959524	CUDALucas v2.05.1
Verified	2016-10-26	ATH	8810F4AEEAC40FF8	8259194	Windows 64-bit,Prime95,v28.9,build 2

History

Date	User	Type	Result
2024-05-25	Chuck	NF	no factor TF: 68-69
2020-12-04	Sid & Andy	NF	no factor TF: 74-75
2019-12-22	-anonymous-	NF	no factor TF: 73-74
2018-08-05	-anonymous-	NF	no factor TF: 72-73
2016-10-26	ATH	C-LL	8810F4AEEAC40FF8
2016-10-19	AirSquirrels	C-LL	1A975BD565E655A4
2016-01-08	MadPoo 🙂	C-LL	8810F4AEEAC40FF8
2015-10-16	-anonymous-	NF	no factor TF: 71-72
2015-09-24	David Campeau	NF	no factor TF: 70-71
2015-07-23	Carsten Kossendey	NF	no factor TF: 69-70
2013-01-30	Carsten Kossendey	NF	no factor TF: 68-69
2009-02-23	Andrey Kurgannikov	C-LL	6DEC00A359287228
2008-12-28	Andrey Kurgannikov	NF-PM1	B1=535000, B2=14578750
2007-11-17	sasaki3	NF	no factor TF: 1-68
2007-10-29	ComputerraRU	NF	no factor TF: 63-64