3 393 073 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
223571887259641	15	47.7	old

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	2017-11-05	Oliver Kruse	F19F2FC6FBDA3526	1	3080282	5	3
Verified	2017-12-15	kkmrkkblmbrbk	F19F2FC6FBDA3526	1	1885311	5	3

History

Date	User	Type	Result
2022-09-05	Joss	NF-PM1	B1=1131024, B2=213444000
2022-01-09	Joss	NF-PM1	B1=1131024, B2=111642300
2021-07-09	Joss	NF	no factor from 2^67 to 2^68
2021-03-15	Joss	NF-PM1	B1=339307, B2=3732380, E=6
2017-12-15	kkmrkkblmbrbk	C-PRP	M3393073/223571887259641 : F19F2FC6FBDA3526 PRP: Verified PRP without proof (not generated)
2017-11-05	Oliver Kruse	C-PRP	M3393073/223571887259641 : F19F2FC6FBDA3526 PRP: Verified PRP without proof (not generated)