3 221 299 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
49828863302039	14	45.5	old

ECM

Digits	B1	Curves
25	50000	52 / 280

Estimated T-Level: 20.9 ⓘ

TF below 2^65 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	4A27D3CDC95A2A35	1	2456082	5	3
Verified	2017-11-19	Oliver Kruse	4A27D3CDC95A2A35	1	1931619	5	3

History

Date	User	Type	Result
2022-08-17	Joss	NF-PM1	B1=3221299, B2=370466250
2022-01-03	Joss	NF-PM1	B1=3221299, B2=217763700
2021-12-19	Joss	NF-PM1	B1=3221299, B2=109008900
2021-06-07	Joss	NF	no factor from 2^67 to 2^68
2021-06-07	Joss	NF-PM1	B1=3221299
2021-01-10	Joss	NF-PM1	B1=322129, B2=3221299, E=6
2021-01-10	Joss	NF-PM1	B1=322129
2021-01-02	Joss	NF-PM1	B1=161064
2017-11-19	Oliver Kruse	C-PRP	M3221299/49828863302039 : 4A27D3CDC95A2A35 PRP: Verified PRP without proof (not generated)
2017-11-02	kkmrkkblmbrbk	C-PRP	M3221299/49828863302039 : 4A27D3CDC95A2A35 PRP: Verified PRP without proof (not generated)