2 852 429 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
73653979990415780927	20	66.0	2009-04-04 23:19:34

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Robert Friberg	099A44ECE99C8567	0
Verified (Factored)	1999-09-14	Matti Kinnunen	099A44ECE99C8567	1364048

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-22	Oliver Kruse	49A0C5F6B6B6EEC8	1	147530	5	3
Verified	2017-12-07	kkmrkkblmbrbk	49A0C5F6B6B6EEC8	1	2039844	5	3

History

Date	User	Type	Result
2023-02-18	USAFSS	NF-PM1	B1=360000, B2=296091180
2017-12-07	kkmrkkblmbrbk	C-PRP	M2852429/73653979990415780927 : 49A0C5F6B6B6EEC8 PRP: Verified PRP without proof (not generated)
2017-10-22	Oliver Kruse	C-PRP	M2852429/73653979990415780927 : 49A0C5F6B6B6EEC8 PRP: Verified PRP without proof (not generated)
2009-04-04	Sid & Andy	F-ECM	Factor: 73653979990415780927
2009-02-13	Sturle Sunde	NF	no factor from 2^60 to 2^61