1 842 941 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
8932400334005007311	19	63.0	old
8041440301620043380511	22	72.8	2021-03-01 21:46:04

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	Shift
Verified (Factored)		Joel Smith	899A8BC607FE573A	0
Verified (Factored)	1998-12-21	Nick Mellor	899A8BC607FE573A	445389

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-04	Oliver Kruse	4B7A5AF43A9BC196	1	0	1	3
Verified (Factored)	2017-11-06	ATH	4B7A5AF43A9BC196	1	647822	1	3
Verified	2021-03-03	LaurV	403D632426D4AA6A	2	631581	5	3

History

Date	User	Type	Result
2022-04-05	Joss	NF-PM1	B1=1000000, B2=188329050
2021-03-03	Ben Delo	CERT	PRP Certification Proof certified good
2021-03-03	LaurV	C-PRP	M1842941/8932400334005007311/8041440301620043380511 : 403D632426D4AA6A PRP proof power = 7 PRP: Verified Proof certified good
2021-03-01	_p95holder_	F-ECM	Factor: 8041440301620043380511 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-06	ATH	C-PRP	M1842941/8932400334005007311 : 4B7A5AF43A9BC196 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1842941/8932400334005007311 : 4B7A5AF43A9BC196 PRP: Verified (Factored) PRP without proof (not generated)