11 940 343 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 2 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
957540918996688393	18	59.7	old
4130248598639223986281	22	71.8	2021-11-19 14:09:27

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-12-10	kracker	3B624711D460EEF1	2	8378331	5	3
Verified	2021-12-11	LaurV	3B624711D460EEF1	2	9207396	5	3

P-1 factors

Date	Factor	B1	B2
2021-11-19	4130248598639223986281	400000	400000

History

Date	User	Type	Result
2023-05-19	nordi	NF-PM1	B1=400000, B2=428459850
2021-12-11	AT-SGAI-CSIC	CERT	PRP Certification Proof certified good
2021-12-11	LaurV	C-PRP	M11940343/957540918996688393/4130248598639223986281 : 3B624711D460EEF1 PRP proof power = 8 PRP: Verified Proof certified good
2021-12-10	kracker	C-PRP	M11940343/957540918996688393/4130248598639223986281 : 3B624711D460EEF1 PRP: Verified PRP without proof (not generated)
2021-11-21	nordi	NF-PM1	B1=400000, B2=12000000
2021-11-19	nordi	F-PM1	Factor: 4130248598639223986281 / (P-1, B1=400000)