86 379 961 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 2⁷⁷

TF target 2⁷⁵

P-1

B1 =	700000
B2 =	13650000

Status	Date	User	Residue	Shift	Type	Base
Verified	2019-08-22	ky0uraku	F73C9C546FEF58B5	34902059	1	3
Verified	2025-02-02	GdS	F73C9C546FEF58B5	0	1	3

History

Date	User	Type	Result
2025-02-02	COMPUTRON9001	CERT	PRP Certification CERT proof power = 10 Proof certified good
2025-02-02	GdS	C-PRP	F73C9C546FEF58B5 PRP proof power = 10 PRP: Verified Proof certified good
2020-05-21	-Anonymous-	NF	no factor from 2^76 to 2^77
2019-08-22	ky0uraku	C-PRP	F73C9C546FEF58B5 PRP: Verified PRP without proof (not generated)
2018-05-17	Kevin Jaget	NF-PM1	B1=700000, B2=13650000, E=12
2018-02-04	TheJudger	NF	no factor from 2^75 to 2^76
2018-01-08	Brian Beuning	NF	no factor from 2^74 to 2^75
2017-05-05	RichD0	NF	no factor from 2^73 to 2^74
2017-04-28	Matthias Wurtinger	NF	no factor from 2^72 to 2^73
2013-07-23	La Güira	NF	no factor from 2^71 to 2^72
2013-07-23	La Güira	NF	no factor from 2^70 to 2^71
2013-03-29	-Anonymous-	NF	no factor from 2^69 to 2^70
2013-03-25	-Anonymous-	NF	no factor from 2^68 to 2^69
2013-03-15	Smok_bmv	NF	no factor from 2^67 to 2^68
2013-03-12	ramgeis	NF	no factor from 2^66 to 2^67
2010-12-25	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