85 916 041 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 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	695000
B2 =	13726250

Status	Date	User	Residue	Shift	Type	Base
Verified	2019-07-16	ky0uraku	318C2052282F0B23	64300471	1	3
Verified	2022-08-17	ATH	318C2052282F0B23	0	1	3

History

Date	User	Type	Result
2022-08-17	Loic	CERT	PRP Certification CERT proof power = 8 Proof certified good
2022-08-17	ATH	C-PRP	318C2052282F0B23 PRP proof power = 8 PRP: Verified Proof certified good
2019-07-16	ky0uraku	C-PRP	318C2052282F0B23 PRP: Verified PRP without proof (not generated)
2018-02-18	TheJudger	NF-PM1	B1=695000, B2=13726250, E=12
2017-10-15	TheJudger	NF	no factor from 2^75 to 2^76
2017-10-15	TheJudger	NF	no factor from 2^74 to 2^75
2017-05-06	-Anonymous-	NF	no factor from 2^73 to 2^74
2017-03-16	Judge Hale	NF	no factor from 2^72 to 2^73
2017-03-16	Judge Hale	NF	no factor from 2^71 to 2^72
2014-03-08	SMoffat	NF	no factor from 2^70 to 2^71
2013-08-21	-Anonymous-	NF	no factor from 2^69 to 2^70
2013-06-18	frmar	NF	no factor from 2^68 to 2^69
2013-06-17	frmar	NF	no factor from 2^67 to 2^68
2013-03-05	wangyun183	NF	no factor from 2^66 to 2^67
2013-02-28	ITS	NF	no factor from 2^65 to 2^66
2010-12-22	Architects Cubed	NF	no factor from 2^64 to 2^65