3 242 947 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
145132615180532633	18	57.0	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	2017-11-02	kkmrkkblmbrbk	B037250853BD74F6	1	1518526	5	3
Verified	2017-11-19	Oliver Kruse	B037250853BD74F6	1	3058403	5	3

History

Date	User	Type	Result
2022-08-17	Joss	NF-PM1	B1=3242947, B2=370466250
2022-01-03	Joss	NF-PM1	B1=3242947, B2=217763700
2021-12-19	Joss	NF-PM1	B1=3242947, B2=109008900
2021-07-12	Joss	NF	no factor from 2^67 to 2^68
2021-07-12	Joss	NF-PM1	B1=3242947
2021-01-17	Joss	NF-PM1	B1=324294, B2=3242947, E=6
2020-12-25	Joss	NF-PM1	B1=108098
2017-11-19	Oliver Kruse	C-PRP	M3242947/145132615180532633 : B037250853BD74F6 PRP: Verified PRP without proof (not generated)
2017-11-02	kkmrkkblmbrbk	C-PRP	M3242947/145132615180532633 : B037250853BD74F6 PRP: Verified PRP without proof (not generated)