74 490 397 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	620000
B2 =	12555000

Status	Date	User	Residue	Shift
Unverified	2016-04-08	Jack The Ripper	0257A54BD34659__	557507

History

Date	User	Type	Result
2016-04-08	Jack The Ripper	C-LL	0257A54BD34659__
2015-12-24	Travis Glenn Russo	NF-PM1	B1=620000, B2=12555000, E=12
2015-12-20	AirSquirrels	NF	no factor from 2^74 to 2^75
2015-12-20	AirSquirrels	NF	no factor from 2^73 to 2^74
2015-10-13	Judge Hale	NF	no factor from 2^72 to 2^73
2013-12-06	Smok_bmv	NF	no factor from 2^71 to 2^72
2013-12-06	Smok_bmv	NF	no factor from 2^70 to 2^71
2013-05-13	-Anonymous-	NF	no factor from 2^69 to 2^70
2011-01-14	Per Jessen	NF	no factor from 2^68 to 2^69
2011-01-08	Per Jessen	NF	no factor from 2^67 to 2^68
2011-01-01	Per Jessen	NF	no factor from 2^66 to 2^67
2010-12-28	Per Jessen	NF	no factor from 2^65 to 2^66
2010-10-19	-Anonymous-	NF	no factor from 2^64 to 2^65
2008-09-12	lycorn	NF	no factor to 2^64