81 238 687 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 =	690000
B2 =	13972500

Status	Date	User	Residue	Shift
Unverified	2017-09-04	Evgeniy Zavialov	48D846F11521E2__	26439580

History

Date	User	Type	Result
2017-09-04	Evgeniy Zavialov	C-LL	48D846F11521E2__
2017-05-27	arnaud	NF-PM1	B1=690000, B2=13972500, E=6
2016-09-16	-Anonymous-	NF	no factor from 2^74 to 2^75
2016-09-16	-Anonymous-	NF	no factor from 2^73 to 2^74
2016-09-16	-Anonymous-	NF	no factor from 2^72 to 2^73
2016-09-16	-Anonymous-	NF	no factor from 2^71 to 2^72
2011-02-17	steinrar	NF	no factor from 2^70 to 2^71
2011-02-17	steinrar	NF	no factor from 2^69 to 2^70
2011-02-17	steinrar	NF	no factor from 2^68 to 2^69
2011-02-17	steinrar	NF	no factor from 2^67 to 2^68
2011-02-17	steinrar	NF	no factor from 2^65 to 2^67
2010-12-12	Architects Cubed	NF	no factor from 2^64 to 2^65