86 412 577 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 =	700000
B2 =	13825000

Status	Date	User	Residue	Shift	Type	Base
Verified	2019-08-26	ky0uraku	EC5CECE15E962DEC	73911764	1	3
Verified	2025-02-19	GdS	EC5CECE15E962DEC	0	1	3

History

Date	User	Type	Result
2025-02-19	George Woltman	CERT	PRP Certification CERT proof power = 10 Proof certified good
2025-02-19	GdS	C-PRP	EC5CECE15E962DEC PRP proof power = 10 PRP: Verified Proof certified good
2019-08-26	ky0uraku	C-PRP	EC5CECE15E962DEC PRP: Verified PRP without proof (not generated)
2018-03-25	TheJudger	NF-PM1	B1=700000, B2=13825000, E=12
2018-02-01	Jon Pace	NF	no factor from 2^75 to 2^76
2018-01-14	The Mawn	NF	no factor from 2^74 to 2^75
2017-05-04	RichD0	NF	no factor from 2^73 to 2^74
2017-04-27	Greg	NF	no factor from 2^72 to 2^73
2016-02-19	america64	NF	no factor from 2^71 to 2^72
2014-08-25	TSRPrime	NF	no factor from 2^70 to 2^71
2013-03-17	timc995	NF	no factor from 2^69 to 2^70
2013-03-16	timc995	NF	no factor from 2^68 to 2^69
2013-03-15	g0b	NF	no factor from 2^67 to 2^68
2013-03-14	wangyun183	NF	no factor from 2^66 to 2^67
2010-12-26	Michael C	NF	no factor from 2^65 to 2^66
2010-11-21	Architects Cubed	NF	no factor from 2^64 to 2^65