3 495 451 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
56301145366177	14	45.7	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	2017-11-07	kkmrkkblmbrbk	F5C97811F1EF92DF	1	3306834	5	3
Verified	2017-11-24	Oliver Kruse	F5C97811F1EF92DF	1	1546454	5	3

History

Date	User	Type	Result
2022-01-22	Joss	NF-PM1	B1=1000000, B2=114656850
2021-12-23	Joss	NF-PM1	B1=749545, B2=129752700
2021-12-19	Joss	NF	no factor from 2^68 to 2^69
2021-06-07	Joss	NF	no factor from 2^67 to 2^68
2021-02-23	Joss	NF	no factor from 2^66 to 2^67
2021-02-21	Joss	NF	no factor from 2^65 to 2^66
2021-02-16	Joss	NF-PM1	B1=349545, B2=3844996, E=6
2021-02-16	Joss	NF-PM1	B1=349545
2021-02-15	Joss	NF-PM1	B1=349545
2017-11-24	Oliver Kruse	C-PRP	M3495451/56301145366177 : F5C97811F1EF92DF PRP: Verified PRP without proof (not generated)
2017-11-07	kkmrkkblmbrbk	C-PRP	M3495451/56301145366177 : F5C97811F1EF92DF PRP: Verified PRP without proof (not generated)