48 019 087 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 =	750000
B2 =	750000

Status	Date	User	Residue	Shift	Software
Bad	2010-01-27	timothee.chaumier	955C680E07FA47D5	33299736	Windows 64-bit,Prime95,v25.9,build 4
Verified	2011-08-23	ebravick	6AA17B5B76B41C14	24866572	Linux 64-bit,Prime95,v26.6,build 3
Verified	2016-08-26	AirSquirrels	6AA17B5B76B41C14	0	clLucas v1.04

History

Date	User	Type	Result
2017-12-14	Sid & Andy	NF	no factor TF: 72-73
2016-08-26	AirSquirrels	C-LL	6AA17B5B76B41C14
2015-08-16	Sid & Andy	NF	no factor TF: 71-72
2015-08-09	Mark Rose	NF	no factor TF: 70-71
2015-07-25	Sid & Andy	NF	no factor TF: 69-70
2011-08-23	ebravick	C-LL	6AA17B5B76B41C14
2010-01-27	timothee.chaumier	C-LL	955C680E07FA47D5
2008-12-05	dapike	NF-PM1	B1=750000
2008-07-04	S36049	NF	no factor TF: 1-69
2003-10-08	Thomas Mullen	NF	no factor TF: 1-60
2003-06-09	Thomas Mullen	NF	no factor TF: 1-59