1 848 281 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
14786249	8	23.8	old
166600469242115255407	21	67.2	2020-07-06 20:40:05

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 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 (Factored)	2017-10-04	Oliver Kruse	7B26336DEFB856BB	1	0	1	3
Verified (Factored)	2017-11-06	kkmrkkblmbrbk	7B26336DEFB856BB	1	1326217	1	3
Verified	2020-07-07	mnd9	8F2340C0DACD016F	2	301739	5	3
Verified	2020-07-07	atrench	8F2340C0DACD016F	2	283739	5	3
Verified	2020-07-09	nordi	8F2340C0DACD016F	2	1154472	5	3

History

Date	User	Type	Result
2022-04-11	Lisander Viaene	NF-PM1	B1=500000, B2=2835864570
2020-07-09	nordi	C-PRP	M1848281/14786249/166600469242115255407 : 8F2340C0DACD016F PRP: Verified PRP without proof (not generated)
2020-07-07	atrench	C-PRP	M1848281/14786249/166600469242115255407 : 8F2340C0DACD016F PRP: Verified PRP without proof (not generated)
2020-07-07	mnd9	C-PRP	M1848281/14786249/166600469242115255407 : 8F2340C0DACD016F PRP: Verified PRP without proof (not generated)
2020-07-06	Chang Chia-Tche	F-ECM	Factor: 166600469242115255407 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-06	kkmrkkblmbrbk	C-PRP	M1848281/14786249 : 7B26336DEFB856BB PRP: Verified PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1848281/14786249 : 7B26336DEFB856BB PRP: Verified PRP without proof (not generated)