3 152 557 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
9196639280401	13	43.1	old

ECM

Digits	B1	Curves
25	50000	58 / 280

Estimated T-Level: 21.0 ⓘ

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	2017-10-31	Oliver Kruse	ED24DB7C8452BAEE	1	1076040	5	3
Verified	2017-12-12	kkmrkkblmbrbk	ED24DB7C8452BAEE	1	2965378	5	3

History

Date	User	Type	Result
2022-08-17	Joss	NF-PM1	B1=3152557, B2=319553850
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
2022-03-24	LordJulius	NF	no factor from 2^64 to 2^65
2022-01-03	Joss	NF-PM1	B1=3152557, B2=217752150
2021-12-19	Joss	NF-PM1	B1=3152557, B2=108997350
2021-06-06	Joss	NF	no factor from 2^67 to 2^68
2021-06-06	Joss	NF-PM1	B1=3152557
2021-01-07	Joss	NF	no factor from 2^63 to 2^64
2021-01-05	Joss	NF	no factor from 2^62 to 2^63
2021-01-05	Joss	NF-PM1	B1=315255, B2=3152557, E=6
2021-01-05	Joss	NF-PM1	B1=315255
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
2021-01-02	Joss	NF-PM1	B1=157627
2017-12-12	kkmrkkblmbrbk	C-PRP	M3152557/9196639280401 : ED24DB7C8452BAEE PRP: Verified PRP without proof (not generated)
2017-10-31	Oliver Kruse	C-PRP	M3152557/9196639280401 : ED24DB7C8452BAEE PRP: Verified PRP without proof (not generated)