1 064 243 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
2128487	7	21.0	old
130620928849	12	36.9	2008-07-16 09:30:52
4147773848368810103849	22	71.8	2014-12-13 17:21:18

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-05	Oliver Kruse	22E4FC4203C310F9	3	0	1	3
Verified	2017-10-16	Oliver Kruse	22E4FC4203C310F9	3	470042	1	3
Verified	2017-12-31	ATH	22E4FC4203C310F9	3	846603	1	3

P-1 factors

Date	Factor	B1	B2
2014-12-13	4147773848368810103849	300000	10000000

History

Date	User	Type	Result
2017-12-31	ATH	C-PRP	M1064243/2128487/130620928849/4147773848368810103849 : 22E4FC4203C310F9 PRP: Verified PRP without proof (not generated)
2017-10-16	Oliver Kruse	C-PRP	M1064243/2128487/130620928849/4147773848368810103849 : 22E4FC4203C310F9 PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1064243/2128487/130620928849/4147773848368810103849 : 22E4FC4203C310F9 PRP: Verified PRP without proof (not generated)
2017-09-28	Oliver Kruse	C-PRP	M1064243/2128487/130620928849/4147773848368810103849 : 22E4FC4203C310F9 PRP without proof (not generated)
2014-12-13	alpertron	F-PM1	Factor: 4147773848368810103849 / (P-1, B1=300000, B2=10000000, E=12)
2008-07-16	J Feitsma	F	Factor: 130620928849