3 242 531 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
9663449465765047	16	53.1	old
16612190234054791	17	53.9	2014-10-19 12:20:21

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	2017-10-05	kkmrkkblmbrbk	1E640A3023A5FBCE	2	0	1	3
Verified	2017-11-19	Oliver Kruse	1E640A3023A5FBCE	2	2986018	1	3

History

Date	User	Type	Result
2022-08-17	Joss	NF-PM1	B1=3242531, B2=330757350
2022-04-20	LordJulius	NF	no factor from 2^66 to 2^67
2022-04-20	LordJulius	NF	no factor from 2^65 to 2^66
2022-04-20	LordJulius	NF	no factor from 2^64 to 2^65
2022-04-20	LordJulius	NF	no factor from 2^63 to 2^64
2022-04-20	LordJulius	NF	no factor from 2^62 to 2^63
2021-12-25	Joss	NF-PM1	B1=3242531, B2=173608050
2021-10-02	Joss	NF	no factor from 2^67 to 2^68
2021-10-02	Joss	NF-PM1	B1=3242531, B2=64850620, E=12
2020-08-21	Joss	NF-PM1	B1=324253, B2=3242531, E=6
2020-08-20	Joss	NF-PM1	B1=324253
2017-11-19	Oliver Kruse	C-PRP	M3242531/9663449465765047/16612190234054791 : 1E640A3023A5FBCE PRP: Verified PRP without proof (not generated)
2017-10-05	kkmrkkblmbrbk	C-PRP	M3242531/9663449465765047/16612190234054791 : 1E640A3023A5FBCE PRP: Verified PRP without proof (not generated)
2014-10-19	TJAOI	F	Factor: 16612190234054791 / TF: 53-54