80 133 871 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 =	690000
B2 =	13455000

Status	Date	User	Residue	Shift	Type	Base
Verified	2018-06-03	ky0uraku	EA42C7C872A9C1A7	73023012	1	3
Verified	2019-05-31	XZT	EA42C7C872A9C1A7	79944524	1	3

History

Date	User	Type	Result
2019-05-31	XZT	C-PRP	EA42C7C872A9C1A7 PRP: Verified PRP without proof (not generated)
2018-06-03	ky0uraku	C-PRP	EA42C7C872A9C1A7 PRP: Verified PRP without proof (not generated)
2016-12-12	Smok_bmv	NF-PM1	B1=690000, B2=13455000
2016-10-02	electron1897	NF	no factor from 2^74 to 2^75
2016-10-02	electron1897	NF	no factor from 2^73 to 2^74
2016-10-02	electron1897	NF	no factor from 2^72 to 2^73
2014-02-10	SMoffat	NF	no factor from 2^71 to 2^72
2013-05-31	PascalBieri	NF	no factor from 2^70 to 2^71
2011-01-25	dsl	NF	no factor from 2^69 to 2^70
2011-01-23	Sonty	NF	no factor from 2^68 to 2^69
2011-01-08	-Anonymous-	NF	no factor from 2^67 to 2^68
2011-01-07	-Anonymous-	NF	no factor from 2^66 to 2^67
2010-12-16	David Barley	NF	no factor from 2^65 to 2^66
2010-12-03	Architects Cubed	NF	no factor from 2^64 to 2^65