2 047 141 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
12282847	8	23.6	old
1950652653511150532353	22	70.7	2019-07-05 00:26:59

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	181 / 640

Estimated T-Level: 26.4 ⓘ

TF below 2^83 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-06	Oliver Kruse	AF87484C5C210060	1	0	1	3
Verified (Factored)	2017-11-15	kkmrkkblmbrbk	AF87484C5C210060	1	990714	1	3
Verified	2019-07-05	Niels_Mache_Nextcloud	BB5D515FF7F88836	2	2036120	5	3
Verified	2019-07-05	ATH	BB5D515FF7F88836	2	1804134	5	3

History

Date	User	Type	Result
2019-07-05	ATH	C-PRP	M2047141/12282847/1950652653511150532353 : BB5D515FF7F88836 PRP: Verified PRP without proof (not generated)
2019-07-05	Niels_Mache_Nextcloud	C-PRP	M2047141/12282847/1950652653511150532353 : BB5D515FF7F88836 PRP: Verified PRP without proof (not generated)
2019-07-05	ATH	F-ECM	Factor: 1950652653511150532353 / (ECM curve 1, B1=50000, B2=5000000, Sigma=4172969176069246)
2017-11-15	kkmrkkblmbrbk	C-PRP	M2047141/12282847 : AF87484C5C210060 PRP: Verified PRP without proof (not generated)
2017-10-06	Oliver Kruse	C-PRP	M2047141/12282847 : AF87484C5C210060 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12