1 826 743 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
29227889	8	24.8	old
141671226623	12	37.0	2008-07-15 07:47:06
403333729168115180214383	24	78.4	2021-01-08 21:15:13

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 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	A2113076EADA3836	2	0	1	3
Verified (Factored)	2017-11-06	ATH	A2113076EADA3836	2	1755796	1	3
Verified	2021-01-09	SRJ2877	2D95163C4C75B623	3	372195	5	3

History

Date	User	Type	Result
2021-01-09	curtisc	CERT	PRP Certification Proof certified good
2021-01-09	SRJ2877	C-PRP	M1826743/29227889/141671226623/403333729168115180214383 : 2D95163C4C75B623 PRP proof power = 7 PRP: Verified Proof certified good
2021-01-08	_p95holder_	F-ECM	Factor: 403333729168115180214383 / (ECM curve 7, B1=50000, B2=5000000)
2017-11-06	ATH	C-PRP	M1826743/29227889/141671226623 : A2113076EADA3836 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1826743/29227889/141671226623 : A2113076EADA3836 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2008-07-15	J Feitsma	F	Factor: 141671226623