3 240 967 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
3116980566449	13	41.5	old
15453452804254245666534079	26	83.7	2019-12-15 13:50:46

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 (Factored)	2017-11-02	Oliver Kruse	847B2C646B59BAD0	1	1452573	5	3
Verified (Factored)	2017-12-13	kkmrkkblmbrbk	847B2C646B59BAD0	1	2903264	5	3
Verified	2019-12-15	mrh	847B2C646B59BAD0	2	2203170	5	3

P-1 factors

Date	Factor	B1	B2
2019-12-15	15453452804254245666534079	100000	0

History

Date	User	Type	Result
2022-09-07	Joss	NF-PM1	B1=1074096, B2=223284600
2022-01-08	Joss	NF-PM1	B1=1074096, B2=116447100
2021-12-11	Joss	NF	no factor from 2^68 to 2^69
2021-04-11	Joss	NF	no factor from 2^67 to 2^68
2021-01-16	Joss	NF-PM1	B1=324096, B2=3240967, E=6
2020-12-25	Joss	NF-PM1	B1=108032
2019-12-15	mrh	C-PRP	M3240967/3116980566449/15453452804254245666534079 : 847B2C646B59BAD0 PRP: Verified PRP without proof (not generated)
2019-12-15	Joss	F-PM1	Factor: 15453452804254245666534079 / (P-1, B1=100000)
2017-12-13	kkmrkkblmbrbk	C-PRP	M3240967/3116980566449 : 847B2C646B59BAD0 PRP: Verified PRP without proof (not generated)
2017-11-02	Oliver Kruse	C-PRP	M3240967/3116980566449 : 847B2C646B59BAD0 PRP: Verified PRP without proof (not generated)