3 148 867 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
35292501337	11	35.0	old
1705152415771001	16	50.6	2014-06-04 11:23:35

ECM

Digits	B1	Curves
25	50000	84 / 280

Estimated T-Level: 21.5 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-31	Oliver Kruse	77881D3426C9A281	2	1224764	5	3
Verified	2017-12-12	kkmrkkblmbrbk	77881D3426C9A281	2	714844	5	3

History

Date	User	Type	Result
2022-03-24	LordJulius	NF	no factor from 2^66 to 2^67
2022-03-24	LordJulius	NF	no factor from 2^65 to 2^66
2022-02-12	Joss	NF-PM1	B1=1000000, B2=119912100
2021-07-19	Joss	NF	no factor from 2^67 to 2^68
2021-01-12	Joss	NF	no factor from 2^64 to 2^65
2021-01-09	Joss	NF	no factor from 2^63 to 2^64
2021-01-06	Joss	NF	no factor from 2^62 to 2^63
2021-01-05	Joss	NF-PM1	B1=314886, B2=3148867, E=6
2021-01-05	Joss	NF-PM1	B1=314886
2021-01-04	Joss	NF	no factor from 2^61 to 2^62
2021-01-04	Joss	NF	no factor from 2^60 to 2^61
2017-12-12	kkmrkkblmbrbk	C-PRP	M3148867/35292501337/1705152415771001 : 77881D3426C9A281 PRP: Verified PRP without proof (not generated)
2017-10-31	Oliver Kruse	C-PRP	M3148867/35292501337/1705152415771001 : 77881D3426C9A281 PRP: Verified PRP without proof (not generated)
2014-06-04	TJAOI	F	Factor: 1705152415771001