99 128 257 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 =	10000000
B2 =	100000000

Status	Date	User	Residue	Shift
Unverified	2021-02-17	jilinzou	338EEE06A28406__	74187375

Status	Date	User	Residue	Shift	Type	Base
Verified	2020-12-04	ky0uraku	B62F4F9EE754AAC7	0	1	3

History

Date	User	Type	Result
2021-02-17	jilinzou	C-LL	338EEE06A28406__
2020-12-04	Franklin Webber	CERT	PRP Certification CERT proof power = 9 Proof certified good
2020-12-04	ky0uraku	C-PRP	B62F4F9EE754AAC7 PRP proof power = 9 PRP: Verified Proof certified good
2020-12-03	ky0uraku	NF-PM1	B1=10000000, B2=100000000
2019-11-15	TheJudger	NF	no factor from 2^76 to 2^77
2019-11-13	Strolling Jellyfish	NF	no factor from 2^75 to 2^76
2019-11-13	Strolling Jellyfish	NF	no factor from 2^74 to 2^75
2019-11-11	ixfd64	NF	no factor from 2^73 to 2^74
2019-10-26	Ryan Propper	NF-PM1	B1=985000, B2=24625000, E=6
2019-05-06	Niels_Mache_Nextcloud	NF	no factor from 2^72 to 2^73
2016-12-29	monst	NF	no factor from 2^71 to 2^72
2014-04-03	PascalBieri	NF	no factor from 2^70 to 2^71
2014-03-29	SMoffat	NF	no factor from 2^69 to 2^70
2014-03-26	SMoffat	NF	no factor from 2^68 to 2^69
2014-03-23	Carsten Kossendey	NF	no factor from 2^66 to 2^68
2013-01-25	Jimmy Brüggemann	NF	no factor from 2^65 to 2^66
2010-11-29	1997rj7	NF	no factor from 2^64 to 2^65