81 449 813 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 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	690000
B2 =	13972500

Status	Date	User	Residue	Shift
Unverified	2017-10-30	Sergey Nosov	5A4C10D21B88E7__	77727075

History

Date	User	Type	Result
2020-06-05	-Anonymous-	NF	no factor from 2^75 to 2^76
2017-10-30	Sergey Nosov	C-LL	5A4C10D21B88E7__
2017-05-27	David Hruska	NF-PM1	B1=690000, B2=13972500, E=12
2016-11-06	TheJudger	NF	no factor from 2^74 to 2^75
2016-11-06	TheJudger	NF	no factor from 2^73 to 2^74
2016-09-29	Judge Hale	NF	no factor from 2^72 to 2^73
2016-09-29	Judge Hale	NF	no factor from 2^71 to 2^72
2014-08-12	-Anonymous-	NF	no factor from 2^70 to 2^71
2014-04-05	Roger Kohn	NF	no factor from 2^69 to 2^70
2014-04-03	Roger Kohn	NF	no factor from 2^68 to 2^69
2014-02-01	ANONYMOUS	NF	no factor from 2^67 to 2^68
2013-02-02	phoenicis	NF	no factor from 2^66 to 2^67
2012-08-08	Carsten Kossendey	NF	no factor from 2^65 to 2^66
2010-12-07	Architects Cubed	NF	no factor from 2^64 to 2^65