223 207 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
2454412742497	13	41.2	old
48352293262529081392062799	26	85.3	2020-05-22 01:18:07

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	567 / 640

Estimated T-Level: 29.4 ⓘ

TF below 2^93 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-22	Oliver Kruse	CCD3EEE5BDDDE305	1	0	1	3
Verified (Factored)	2017-10-12	kkmrkkblmbrbk	CCD3EEE5BDDDE305	1	149786	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	F47A6CEF5DC6FC20	1	195667	5	3
Verified	2020-05-22	M Miller	F47A6CEF5DC6FC20	2	77258	5	3

History

Date	User	Type	Result
2022-03-11	Oliver Kruse	NF-PM1	B1=30000000, B2=10070832992220
2021-06-07	Oliver Kruse	NF-PM1	B1=30000000, B2=3000000000
2020-05-22	M Miller	C-PRP	M223207/2454412742497/48352293262529081392062799 : F47A6CEF5DC6FC20 PRP: Verified PRP without proof (small exponent)
2020-05-22	nordi	F-ECM	Factor: 48352293262529081392062799 / (ECM curve 6, B1=250000, B2=25000000, Sigma=3642751808054281)
2020-04-17	Oliver Kruse	C-PRP	M223207/2454412742497 : F47A6CEF5DC6FC20 PRP: Verified PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M223207/2454412742497 : CCD3EEE5BDDDE305 PRP: Verified PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M223207/2454412742497 : CCD3EEE5BDDDE305 PRP: Verified PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M223207/2454412742497 : CCD3EEE5BDDDE305 PRP without proof (not generated)