98 912 447 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime

TF

No factors below 2⁷⁷

TF target 2⁷⁶

P-1

B1 =	873000
B2 =	43602000

Status	Date	User	Residue	Shift
Unverified	2020-04-17	Sergey Nosov	E4AE04AA0B4917__	90328172

Assigned

Assigned	User	Work Type	Stage	% Done	Updated	Expired
2024-11-03	-Anonymous-	LL double-check		0.00 %	2024-11-03

History

Date	User	Type	Result
2024-06-23	James Heinrich	NF	no factor from 2^73 to 2^74
2021-11-29	James Heinrich	NF-PM1	B1=873000, B2=43602000
2020-04-17	Sergey Nosov	C-LL	E4AE04AA0B4917__
2020-02-02	TheJudger	NF	no factor from 2^76 to 2^77
2020-01-26	TheJudger	NF	no factor from 2^75 to 2^76
2019-12-23	Numberwang	NF	no factor from 2^74 to 2^75
2019-05-01	MadPoo	NF-PM1	B1=100000
2019-03-20	Niels_Mache_Nextcloud	NF	no factor from 2^72 to 2^73
2019-03-09	Conductor	NF	no factor from 2^73 to 2^74
2019-03-09	Conductor	NF	no factor from 2^72 to 2^73
2018-10-07	masser	NF	no factor from 2^71 to 2^72
2014-03-28	OS1	NF	no factor from 2^70 to 2^71
2014-03-24	OS1	NF	no factor from 2^69 to 2^70
2014-03-17	SMoffat	NF	no factor from 2^68 to 2^69
2013-08-17	Le Comte	NF	no factor from 2^67 to 2^68
2013-08-16	-Anonymous-	NF	no factor from 2^67 to 2^68
2013-08-16	Robish	NF	no factor from 2^66 to 2^67
2013-07-31	David Campeau	NF	no factor from 2^65 to 2^66
2010-12-26	1997rj7	NF	no factor from 2^64 to 2^65