382 171 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
1144044730564923659479339249	28	89.9	2019-04-09 14:31:14

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	263 / 640

Estimated T-Level: 27.1 ⓘ

TF below 2^85 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Paul F. Bird	97C38DC6EB1F0FF6	0
Verified (Factored)		Simon Burge	97C38DC6EB1F0FF6	0
Verified (Factored)		Eivind Triel	97C38DC6EB1F0FF6	4623
Verified (Factored)	2002-12-25	Brian J. Beesley	97C38DC6EB1F0FF6	175657

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-04-09	matzetoni	1826D000C48F13F5	1	328643	5	3
Verified	2019-04-12	-Anonymous-	1826D000C48F13F5	1	167282	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2019-04-12	-Anonymous-	C-PRP	M382171/1144044730564923659479339249 : 1826D000C48F13F5 PRP: Verified PRP without proof (small exponent)
2019-04-09	matzetoni	C-PRP	M382171/1144044730564923659479339249 : 1826D000C48F13F5 PRP: Verified PRP without proof (small exponent)
2019-04-09	alex	F-ECM	Factor: 1144044730564923659479339249 / (ECM curve 13, B1=250000, B2=25000000, Sigma=7342498517457946)
2018-02-03	BloodERazor	NF	no factor from 2^64 to 2^65
2017-01-03	mikr	NF-PM1	B1=60000000, B2=3000000000, E=12
2015-11-22	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-11-22	Gordon Spence	NF	no factor from 2^62 to 2^63
2012-12-01	dbaugh	NF	no factor from 2^61 to 2^62
2012-11-27	dbaugh	NF	no factor from 2^60 to 2^61
2012-07-25	alpertron	NF-PM1	B1=10000000, B2=200000000, E=12
2009-01-09	Sturle Sunde	NF	no factor from 2^59 to 2^60
2009-01-05	Sturle Sunde	NF	no factor from 2^58 to 2^59