99 047 617 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 Lucas-Lehmer test

TF

No factors below 2⁷⁷

TF target 2⁷⁶

P-1

B1 =	985000
B2 =	24378750

Status	Date	User	Residue	Shift
Verified	2020-02-24	curtisc	8224E0C5016BF0DF	51870438
Verified	2024-11-27	zhangst--china	8224E0C5016BF0DF	92144527

History

Date	User	Type	Result
2024-11-27	zhangst--china	C-LL	8224E0C5016BF0DF
2020-02-24	curtisc	C-LL	8224E0C5016BF0DF
2019-11-10	TheJudger	NF	no factor from 2^76 to 2^77
2019-11-10	TheJudger	NF	no factor from 2^75 to 2^76
2019-11-10	TheJudger	NF	no factor from 2^74 to 2^75
2019-11-10	TheJudger	NF	no factor from 2^73 to 2^74
2019-10-21	Ryan Propper	NF-PM1	B1=985000, B2=24378750, E=6
2019-05-18	Niels_Mache_Nextcloud	NF	no factor from 2^72 to 2^73
2016-12-19	monst	NF	no factor from 2^71 to 2^72
2014-07-30	SMoffat	NF	no factor from 2^70 to 2^71
2014-05-25	Klaus Nordmann	NF	no factor from 2^69 to 2^70
2014-05-21	ITS	NF	no factor from 2^68 to 2^69
2014-03-16	Carsten Kossendey	NF	no factor from 2^66 to 2^68
2013-02-13	Jimmy Brüggemann	NF	no factor from 2^65 to 2^66
2011-01-17	1997rj7	NF	no factor from 2^64 to 2^65