111 961 177 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 =	757000
B2 =	135072000

Status	Date	User	Residue	Shift
Unverified	2020-12-12	curtisc	C5990AA281D8E1__	59208294

Assigned

Assigned	User	Work Type	Stage	% Done	Updated	Expired
2024-11-15	-Anonymous-	LL double-check		0.00 %	2024-11-15

History

Date	User	Type	Result
2025-09-13	masser	NF	no factor from 2^76 to 2^77
2022-12-31	James Heinrich	NF-PM1	B1=757000, B2=135072000
2020-12-12	curtisc	C-LL	C5990AA281D8E1__
2020-09-25	curtisc	NF-PM1	B1=780000
2020-09-22	Greg	NF	no factor from 2^75 to 2^76
2020-09-22	Greg	NF	no factor from 2^74 to 2^75
2020-06-06	GROBERTS	NF	no factor from 2^73 to 2^74
2020-04-20	SRBase	NF	no factor from 2^72 to 2^73
2015-02-13	Andrew B	NF	no factor from 2^71 to 2^72
2015-02-13	Andrew B	NF	no factor from 2^70 to 2^71
2015-02-11	JoJo-SUN24	NF	no factor from 2^69 to 2^70
2015-02-11	David_Dirkx	NF	no factor from 2^68 to 2^69
2015-02-05	Preben S	NF	no factor from 2^67 to 2^68
2014-11-22	Richard	NF	no factor from 2^66 to 2^67
2012-05-31	omiXorp	NF	no factor from 2^65 to 2^66
2010-09-23	Commaster	NF	no factor from 2^64 to 2^65
2010-05-05	Richard	NF	no factor from 2^63 to 2^64