3 308 759 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
3014967670873	13	41.5	old
8242383369721	13	42.9	2008-09-30 14:47:16

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-11-04	Oliver Kruse	03B6871384BFCFDC	2	1067712	5	3
Verified	2017-12-14	kkmrkkblmbrbk	03B6871384BFCFDC	2	839066	5	3

History

Date	User	Type	Result
2022-09-10	Joss	NF-PM1	B1=1000000, B2=241175550
2022-03-09	Joss	NF-PM1	B1=1000000, B2=134343300
2021-07-26	Joss	NF	no factor from 2^67 to 2^68
2021-01-05	Joss	NF-PM1	B1=330875, B2=3308759, E=6
2021-01-04	Joss	NF-PM1	B1=330875
2017-12-14	kkmrkkblmbrbk	C-PRP	M3308759/3014967670873/8242383369721 : 03B6871384BFCFDC PRP: Verified PRP without proof (not generated)
2017-11-04	Oliver Kruse	C-PRP	M3308759/3014967670873/8242383369721 : 03B6871384BFCFDC PRP: Verified PRP without proof (not generated)
2008-09-30	markr	F	Factor: 8242383369721