49 794 499 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 =	580000
B2 =	15515000

Status	Date	User	Residue	Shift	Software
Verified	2010-08-28	Kyle Z Schmidt	70B5B3DBDEB79BD0	6205287	Windows 64-bit,Prime95,v25.11,build 2
Verified	2017-09-15	-anonymous-	70B5B3DBDEB79BD0	46737925	Windows 64-bit,Prime95,v28.10,build 1

History

Date	User	Type	Result
2024-08-18	Jarod McClintock	NF	no factor TF: 69-70
2017-12-15	Oliver Kruse	NF	no factor TF: 72-74
2017-09-15	-anonymous-	C-LL	70B5B3DBDEB79BD0
2015-12-28	AirSquirrels	NF	no factor TF: 71-72
2015-12-28	AirSquirrels	NF	no factor TF: 70-71
2015-06-07	Architects Cubed	NF	no factor TF: 69-70
2010-08-28	Kyle Z Schmidt	C-LL	70B5B3DBDEB79BD0
2010-04-23	Kyle Z Schmidt	NF-PM1	B1=580000, B2=15515000, E=6
2008-10-04	tmorrow	NF	no factor TF: 1-69