99 442 663 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 2⁷⁶

P-1

B1 =	775000
B2 =	15112500

Status	Date	User	Residue	Shift	Type	Base
Verified	2020-09-16	ky0uraku	2686CD74EDE048B9	86359301	1	3

History

Date	User	Type	Result
2020-09-16	Ben Delo	CERT	PRP Certification CERT proof power = 9 Proof certified good
2020-09-16	ky0uraku	C-PRP	2686CD74EDE048B9 PRP proof power = 9 PRP: Verified Proof certified good
2020-06-29	Ryan Propper	NF-PM1	B1=775000, B2=15112500, E=6
2020-05-11	TheJudger	NF	no factor from 2^76 to 2^77
2020-05-11	TheJudger	NF	no factor from 2^75 to 2^76
2020-03-25	BytesInFlames	NF	no factor from 2^74 to 2^75
2014-10-12	La Güira	NF	no factor from 2^73 to 2^74
2014-10-12	La Güira	NF	no factor from 2^72 to 2^73
2014-10-12	La Güira	NF	no factor from 2^71 to 2^72
2014-10-12	La Güira	NF	no factor from 2^70 to 2^71
2014-10-12	La Güira	NF	no factor from 2^69 to 2^70
2014-10-12	La Güira	NF	no factor from 2^68 to 2^69
2014-04-24	Carsten Kossendey	NF	no factor from 2^66 to 2^68
2012-11-04	Jimmy Brüggemann	NF	no factor from 2^65 to 2^66
2010-12-01	1997rj7	NF	no factor from 2^64 to 2^65