84 268 621 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 =	675000
B2 =	13331250

Status	Date	User	Residue	Shift	Type	Base
Verified	2019-04-02	ky0uraku	6BF61EB46A6B0AA1	15637632	1	3
Verified	2020-12-14	adamgm	6BF61EB46A6B0AA1	0	1	3

History

Date	User	Type	Result
2020-12-14	adamgm	C-PRP	6BF61EB46A6B0AA1 PRP: Verified PRP without proof (not generated)
2019-04-02	ky0uraku	C-PRP	6BF61EB46A6B0AA1 PRP: Verified PRP without proof (not generated)
2017-11-12	Jacques MOLNE	NF-PM1	B1=675000, B2=13331250, E=12
2017-04-19	TheJudger	NF	no factor from 2^75 to 2^76
2017-04-19	TheJudger	NF	no factor from 2^74 to 2^75
2017-03-31	RichD0	NF	no factor from 2^73 to 2^74
2017-01-15	Judge Hale	NF	no factor from 2^72 to 2^73
2017-01-15	Judge Hale	NF	no factor from 2^71 to 2^72
2013-07-01	Norman Ley	NF	no factor from 2^70 to 2^71
2013-03-05	Eric Frankenberg	NF	no factor from 2^69 to 2^70
2013-02-22	Brandon Shea	NF	no factor from 2^68 to 2^69
2013-02-21	Juergen Kampmeier	NF	no factor from 2^67 to 2^68
2013-02-18	Juergen Kampmeier	NF	no factor from 2^66 to 2^67
2012-08-16	Carsten Kossendey	NF	no factor from 2^65 to 2^66
2010-12-09	Architects Cubed	NF	no factor from 2^64 to 2^65