49 334 413 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 2⁷⁴

TF target 2⁷³

P-1

B1 =	545000
B2 =	8856250

Status	Date	User	Residue	Shift	Software
Bad	2010-05-24	Choi4KANG	221EE918C7938EA2	33080047	Windows,Prime95,v25.11,build 2
Verified	2015-11-05	Architects Cubed	D0A0AC922646DBD1	22453697	Linux 64-bit,Prime95,v27.9,build 1
Verified	2016-09-06	endless_mike	D0A0AC922646DBD1	16698059	Linux 64-bit,Prime95,v28.9,build 2

History

Date	User	Type	Result
2019-07-10	-anonymous-	NF	no factor TF: 73-74
2017-09-09	Sid & Andy	NF	no factor TF: 72-73
2016-09-06	endless_mike	C-LL	D0A0AC922646DBD1
2015-11-05	Architects Cubed	C-LL	D0A0AC922646DBD1
2015-08-17	AirSquirrels	NF	no factor TF: 71-72
2015-08-13	LaurV	NF	no factor TF: 70-71
2015-08-10	Architects Cubed	NF	no factor TF: 69-70
2010-05-24	Choi4KANG	C-LL	221EE918C7938EA2
2010-03-29	Choi4KANG	NF-PM1	B1=545000, B2=8856250
2008-10-04	tsc	NF	no factor TF: 1-69
2008-06-03	-anonymous-	NF	no factor TF: 1-64
2007-07-04	1997rj7	NF	no factor TF: 1-63
2003-11-08	Team Prime Rib	NF	no factor TF: 1-59