2 431 469 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
481430863	9	28.8	old
18790392433	11	34.1	2008-07-14 20:23:50
80001966782633769017	20	66.1	2018-02-22 20:20:11

ECM

Digits	B1	Curves
25	50000	96 / 280

Estimated T-Level: 21.7 ⓘ

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)	2017-10-13	Oliver Kruse	03E751982939CD16	2	234275	5	3
Verified (Factored)	2017-11-27	kkmrkkblmbrbk	03E751982939CD16	2	1920903	5	3
Verified	2018-02-25	Oliver Kruse	03E751982939CD16	3	2216206	5	3
Verified	2018-03-07	AdolfNor	03E751982939CD16	3	1625337	5	3

History

Date	User	Type	Result
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2018-03-07	AdolfNor	C-PRP	M2431469/481430863/18790392433/80001966782633769017 : 03E751982939CD16 PRP: Verified PRP without proof (not generated)
2018-02-25	Oliver Kruse	C-PRP	M2431469/481430863/18790392433/80001966782633769017 : 03E751982939CD16 PRP: Verified PRP without proof (not generated)
2018-02-22	ATH	F-ECM	Factor: 80001966782633769017 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-27	kkmrkkblmbrbk	C-PRP	M2431469/481430863/18790392433 : 03E751982939CD16 PRP: Verified PRP without proof (not generated)
2017-10-13	Oliver Kruse	C-PRP	M2431469/481430863/18790392433 : 03E751982939CD16 PRP: Verified PRP without proof (not generated)
2008-07-14	George Woltman	F-ECM	Factor: 18790392433