78 647 683 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 2⁷⁵

P-1

B1 =	660000
B2 =	13200000

Status	Date	User	Residue	Shift
Unverified	2018-03-17	Henning Gerhardt	276CE87148ED6C__	56011133

History

Date	User	Type	Result
2018-03-17	Henning Gerhardt	C-LL	276CE87148ED6C__
2016-06-25	James Heinrich	NF-PM1	B1=660000, B2=13200000, E=6
2016-06-10	AirSquirrels	NF	no factor from 2^74 to 2^75
2016-06-10	AirSquirrels	NF	no factor from 2^73 to 2^74
2016-06-10	AirSquirrels	NF	no factor from 2^72 to 2^73
2015-08-26	RichD0	NF	no factor from 2^71 to 2^72
2013-06-01	ITS	NF	no factor from 2^70 to 2^71
2011-02-07	Martin Prusa	NF	no factor from 2^69 to 2^70
2011-01-29	Helmut Zulus	NF	no factor from 2^68 to 2^69
2010-11-24	-Anonymous-	NF	no factor from 2^67 to 2^68
2010-11-18	Torchwood Institute	NF	no factor from 2^66 to 2^67
2010-11-14	PrimeCruncher	NF	no factor from 2^65 to 2^66
2010-11-06	H_Reid	NF	no factor from 2^64 to 2^65