338 477 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
9344673017	10	33.1	old
49921388155349033087	20	65.4	2014-10-10 12:40:50
171625512156854090636711	24	77.2	2014-07-02 03:45:26

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	238 / 640

Estimated T-Level: 26.9 ⓘ

TF below 2^84 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-23	Oliver Kruse	0BE36E85F746105B	3	0	1	3
Verified	2017-10-13	Oliver Kruse	0BE36E85F746105B	3	209060	1	3
Verified	2017-12-12	ATH	0BE36E85F746105B	3	102208	1	3
Unverified (Reliable)	2020-04-18	Oliver Kruse	776E4697B41860__	3	176433	5	3

History

Date	User	Type	Result
2021-06-18	George Woltman	NF-PP1	Start=2/7, B1=10000000, B2=830000000
2021-06-18	George Woltman	NF-PM1	B1=20000000, B2=1820000000
2020-04-18	Oliver Kruse	C-PRP	M338477/9344673017/49921388155349033087/171625512156854090636711 : 776E4697B41860__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-12-12	ATH	C-PRP	M338477/9344673017/49921388155349033087/171625512156854090636711 : 0BE36E85F746105B PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-10-13	Oliver Kruse	C-PRP	M338477/9344673017/171625512156854090636711/49921388155349033087 : 0BE36E85F746105B PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M338477/known_factors : 0BE36E85F746105B PRP without proof (not generated)
2014-10-10	TJAOI	F-ECM	Factor: 49921388155349033087 / (ECM curve 6, B1=50000, B2=5000000)
2014-07-02	Richard B. Woods	F-ECM	Factor: 171625512156854090636711