104 500 391 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 =	883000
B2 =	279145020

Status	Date	User	Residue	Shift
Unverified	2020-10-12	Boris and Moe	E8FA00E6ACEDE4__	85548107

Assigned

Assigned	User	Work Type	Stage	% Done	Updated	Expired
2024-11-10	-Anonymous-	LL double-check		0.00 %	2024-11-10

History

Date	User	Type	Result
2023-02-07	James Heinrich	NF-PM1	B1=883000, B2=279145020
2020-10-12	Boris and Moe	C-LL	E8FA00E6ACEDE4__
2020-09-12	Boris and Moe	NF-PM1	B1=935000
2020-09-09	RichD0	NF	no factor from 2^76 to 2^77
2020-09-06	Alexander Pavlicin	NF	no factor from 2^75 to 2^76
2020-03-07	LaurV	NF	no factor from 2^74 to 2^75
2020-03-04	Hans Loeblich	NF	no factor from 2^73 to 2^74
2020-03-02	bayanne	NF	no factor from 2^72 to 2^73
2015-01-02	Ilya Alexandrov	NF	no factor from 2^71 to 2^72
2015-01-02	Ilya Alexandrov	NF	no factor from 2^70 to 2^71
2015-01-02	Ilya Alexandrov	NF	no factor from 2^69 to 2^70
2015-01-01	Simon Harrison	NF	no factor from 2^68 to 2^69
2014-11-15	Houd Al-Obaidli	NF	no factor from 2^67 to 2^68
2014-05-23	Yury Vorobyov	NF	no factor from 2^66 to 2^67
2012-05-05	tsc	NF	no factor from 2^65 to 2^66
2010-08-27	kiwiboy	NF	no factor from 2^64 to 2^65
2010-04-18	xtreme	NF	no factor from 2^63 to 2^64