45 722 167 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 =	550000
B2 =	14712500

Status	Date	User	Residue	Shift	Software
Bad	2010-02-12	bmp37	6BF0FCE448FF659F	9609414	Windows,Prime95,v25.11,build 2
Verified	2017-01-13	Tom Womack	3A2E535D1287F774	4303503	Linux 64-bit,Prime95,v28.10,build 1
Verified	2017-01-16	ATH	3A2E535D1287F774	22861370	CUDALucas v2.05.1

History

Date	User	Type	Result
2018-01-03	-anonymous-	NF	no factor TF: 72-73
2017-01-16	ATH	C-LL	3A2E535D1287F774
2017-01-13	Tom Womack	C-LL	3A2E535D1287F774
2014-08-15	Gordon Spence	NF	no factor TF: 71-72
2014-08-15	Gordon Spence	NF	no factor TF: 70-71
2014-08-15	Gordon Spence	NF	no factor TF: 69-70
2014-08-15	Gordon Spence	NF	no factor TF: 68-69
2010-02-12	bmp37	C-LL	6BF0FCE448FF659F
2009-06-24	bmp37	NF-PM1	B1=550000, B2=14712500
2007-12-31	sannerud.com	NF	no factor TF: 1-68
2007-02-20	1997rj7	NF	no factor TF: 1-63
2000-12-14	Joss	NF	no factor TF: 1-54