3 185 899 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
1747510204087	13	40.7	old

ECM

Digits	B1	Curves
25	50000	98 / 280

Estimated T-Level: 21.8 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-11-01	Oliver Kruse	F3B91E44848B2551	1	940809	5	3
Verified	2017-12-13	kkmrkkblmbrbk	F3B91E44848B2551	1	2993577	5	3

History

Date	User	Type	Result
2022-09-12	Joss	NF-PM1	B1=1000000, B2=241175550
2022-04-02	LordJulius	NF	no factor from 2^66 to 2^67
2022-02-27	Joss	NF-PM1	B1=1000000, B2=134343300
2021-06-04	Joss	NF	no factor from 2^67 to 2^68
2021-01-08	Joss	NF	no factor from 2^65 to 2^66
2021-01-02	Joss	NF-PM1	B1=159294
2017-12-13	kkmrkkblmbrbk	C-PRP	M3185899/1747510204087 : F3B91E44848B2551 PRP: Verified PRP without proof (not generated)
2017-11-01	Oliver Kruse	C-PRP	M3185899/1747510204087 : F3B91E44848B2551 PRP: Verified PRP without proof (not generated)