104 601 199 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 =	888000
B2 =	277564980

Status	Date	User	Residue	Shift
Unverified	2020-12-06	bernhilz	7D98505550FD1E__	23186351

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
2023-02-10	James Heinrich	NF-PM1	B1=888000, B2=277564980
2020-12-06	bernhilz	C-LL	7D98505550FD1E__
2020-10-30	bernhilz	NF-PM1	B1=940000
2020-09-11	LOBES	NF	no factor from 2^76 to 2^77
2020-08-29	Bill Staffen	NF	no factor from 2^75 to 2^76
2020-03-13	LaurV	NF	no factor from 2^74 to 2^75
2020-03-07	Hans Loeblich	NF	no factor from 2^73 to 2^74
2020-03-02	bayanne	NF	no factor from 2^72 to 2^73
2014-10-21	SWL551	NF	no factor from 2^71 to 2^72
2014-10-21	SWL551	NF	no factor from 2^70 to 2^71
2014-10-21	SWL551	NF	no factor from 2^69 to 2^70
2014-10-21	SWL551	NF	no factor from 2^68 to 2^69
2014-06-13	CSLatDD	NF	no factor from 2^67 to 2^68
2014-05-14	ANONYMOUS	NF	no factor from 2^66 to 2^67
2012-07-05	OS1	NF	no factor from 2^65 to 2^66
2010-08-28	Torchwood Institute	NF	no factor from 2^64 to 2^65
2010-04-23	Richard	NF	no factor from 2^63 to 2^64