1 836 433 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
1833759135139922743	19	60.7	2009-07-21 04:52:50
2562668362999409142202937	25	81.1	2021-01-20 21:33:20

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	Shift
Verified (Factored)		Marco Voerman	FE30440F7FB98E75	0
Verified (Factored)	1999-03-15	S05839	FE30440F7FB98E75	736649

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-04	Oliver Kruse	B1B4674D92B4AB36	1	0	1	3
Verified (Factored)	2017-11-06	ATH	B1B4674D92B4AB36	1	1643757	1	3
Verified	2021-01-23	Sébastien BROUCKE	4C1CE0949770A556	2	590606	5	3
Verified	2021-01-23	rucio	4C1CE0949770A556	2	1040783	5	3

History

Date	User	Type	Result
2021-01-23	curtisc	CERT	PRP Certification Proof certified good
2021-01-23	rucio	C-PRP	M1836433/1833759135139922743/2562668362999409142202937 : 4C1CE0949770A556 PRP proof power = 7 PRP: Verified Proof certified good
2021-01-23	Sébastien BROUCKE	C-PRP	M1836433/1833759135139922743/2562668362999409142202937 : 4C1CE0949770A556 PRP: Verified PRP without proof (not generated)
2021-01-20	nordi	F-ECM	Factor: 2562668362999409142202937 / (ECM curve 5, B1=50000, B2=6750000, Sigma=8754427454203234)
2017-11-06	ATH	C-PRP	M1836433/1833759135139922743 : B1B4674D92B4AB36 PRP: Verified PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1836433/1833759135139922743 : B1B4674D92B4AB36 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2009-07-21	Piepen	F-ECM	Factor: 1833759135139922743