93 168 337 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 =	720000
B2 =	13860000

Status	Date	User	Residue	Shift	Type	Base
Verified	2020-09-21	George Woltman	9B87974668588C44	0	1	3

History

Date	User	Type	Result
2024-05-15	Greg	NF	no factor from 2^72 to 2^73
2020-09-22	Ben Delo	CERT	PRP Certification CERT proof power = 8 Proof certified good
2020-09-21	George Woltman	C-PRP	9B87974668588C44 PRP proof power = 8 PRP: Verified Proof certified good
2019-08-26	Ruzovej	NF-PM1	B1=720000, B2=13860000, E=12
2019-08-18	TheJudger	NF	no factor from 2^76 to 2^77
2019-08-18	TheJudger	NF	no factor from 2^75 to 2^76
2019-08-18	TheJudger	NF	no factor from 2^74 to 2^75
2019-05-27	Carsten Kossendey	NF	no factor from 2^73 to 2^74
2019-03-11	Carsten Kossendey	NF	no factor from 2^72 to 2^73
2017-06-18	masser	NF	no factor from 2^71 to 2^72
2015-07-30	monst	NF	no factor from 2^70 to 2^71
2015-05-08	-Anonymous-	NF	no factor from 2^69 to 2^70
2014-11-19	monst	NF	no factor from 2^68 to 2^69
2014-09-19	GrunwalderGIMP	NF	no factor from 2^67 to 2^68
2014-09-18	Per Jessen	NF	no factor from 2^66 to 2^67
2013-07-19	David Campeau	NF	no factor from 2^65 to 2^66
2011-01-06	Architects Cubed	NF	no factor from 2^64 to 2^65