81 282 997 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 =	685000
B2 =	13700000

Status	Date	User	Residue	Shift	Type	Base
Verified	2018-10-19	Kriesel	57D88885621CDA0A	238552	1	3
Verified	2019-12-08	_p95holder_	57D88885621CDA0A	13416696	1	3

History

Date	User	Type	Result
2019-12-08	_p95holder_	C-PRP	57D88885621CDA0A PRP: Verified PRP without proof (not generated)
2018-10-19	Kriesel	C-PRP	57D88885621CDA0A PRP: Verified PRP without proof (not generated)
2017-05-30	bam	NF-PM1	B1=685000, B2=13700000, E=6
2016-11-11	-Anonymous-	NF	no factor from 2^74 to 2^75
2016-11-11	-Anonymous-	NF	no factor from 2^73 to 2^74
2016-09-09	Judge Hale	NF	no factor from 2^72 to 2^73
2016-09-09	Judge Hale	NF	no factor from 2^71 to 2^72
2014-02-19	RMAC9.5	NF	no factor to 2^71
2013-05-10	c10ck3r	NF	no factor from 2^66 to 2^67
2012-08-20	Carsten Kossendey	NF	no factor from 2^65 to 2^66
2010-12-12	Architects Cubed	NF	no factor from 2^64 to 2^65