2 006 231 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
16049849	8	23.9	old
179674688803087379397449	24	77.2	2021-07-25 18:34:10

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	116 / 640

Estimated T-Level: 25.9 ⓘ

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)	2017-10-05	Oliver Kruse	BDA2346C980804AF	1	0	1	3
Verified (Factored)	2017-11-13	kkmrkkblmbrbk	BDA2346C980804AF	1	1478912	1	3
Verified	2021-07-25	SRJ2877	DAF1264AA42AF7CA	2	1343640	5	3

History

Date	User	Type	Result
2021-07-25	Massimo Cappelli (ik5pwa)	CERT	PRP Certification Proof certified good
2021-07-25	SRJ2877	C-PRP	M2006231/16049849/179674688803087379397449 : DAF1264AA42AF7CA PRP proof power = 7 PRP: Verified Proof certified good
2021-07-25	MarkS	F-ECM	Factor: 179674688803087379397449 / (ECM curve 3, B1=50000, B2=5000000, Sigma=2311211170829115)
2017-11-13	kkmrkkblmbrbk	C-PRP	M2006231/16049849 : BDA2346C980804AF PRP: Verified (Factored) PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M2006231/16049849 : BDA2346C980804AF PRP: Verified (Factored) PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12