4 978 069 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
47375652950248385263	20	65.4	2010-05-24 15:44:43

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)		Markus Plankensteiner	71534B0FAFDADCA3	0
Verified (Factored)	2000-03-22	Eric Peterson	71534B0FAFDADCA3	3046499

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	54E435B6B065447B	1	0	1	3
Verified	2018-04-22	Oliver Kruse	54E435B6B065447B	1	4497645	1	3

History

Date	User	Type	Result
2023-04-14	Kevin_9611	NF-PM1	B1=340000, B2=241599930
2018-04-22	Oliver Kruse	C-PRP	M4978069/47375652950248385263 : 54E435B6B065447B PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4978069/47375652950248385263 : 54E435B6B065447B PRP: Verified PRP without proof (not generated)
2010-05-24	Smurgs	F-ECM	Factor: 47375652950248385263
2009-12-08	markr	NF	no factor from 2^61 to 2^62
2009-08-29	Carsten Kossendey	NF-PM1	B1=30000, B2=435000