80 798 981 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with PRP test

TF

No factors below 2⁷⁵

TF target 2⁷⁵

P-1

B1 =	675000
B2 =	12318750

Status	Date	User	Residue	Shift	Type	Base
Verified	2018-07-27	Yoon	B64B57D04089CDBF	13174303	1	3
Verified	2019-09-28	ky0uraku	B64B57D04089CDBF	67574119	1	3

History

Date	User	Type	Result
2019-09-28	ky0uraku	C-PRP	B64B57D04089CDBF PRP: Verified PRP without proof (not generated)
2018-07-27	Yoon	C-PRP	B64B57D04089CDBF PRP: Verified PRP without proof (not generated)
2017-03-03	DeadKings	NF-PM1	B1=675000, B2=12318750
2016-09-10	-Anonymous-	NF	no factor from 2^74 to 2^75
2016-09-10	-Anonymous-	NF	no factor from 2^73 to 2^74
2016-09-10	-Anonymous-	NF	no factor from 2^72 to 2^73
2016-09-10	-Anonymous-	NF	no factor from 2^71 to 2^72
2014-09-07	Stephen J. Herschkorn	NF	no factor from 2^70 to 2^71
2013-08-09	SMoffat	NF	no factor from 2^69 to 2^70
2013-06-07	Manpowre	NF	no factor from 2^68 to 2^69
2013-02-12	Simon Harrison	NF	no factor from 2^67 to 2^68
2013-01-30	ddboy3	NF	no factor from 2^66 to 2^67
2011-08-08	Carsten Kossendey	NF	no factor from 2^65 to 2^66
2010-12-11	Architects Cubed	NF	no factor from 2^64 to 2^65