4 471 939 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
1368738944515308397847	22	70.2	2010-08-27 23:36:42

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1998-03-23	Kai-ming Poon	18BC34028793D984	0
Verified (Factored)	2001-09-16	Engelbert J. Heijns	18BC34028793D984	785578

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	8DAD9004D598C8D6	1	0	1	3
Verified	2018-02-16	Oliver Kruse	8DAD9004D598C8D6	1	1027463	1	3

History

Date	User	Type	Result
2023-10-03	USAFSS	NF-PM1	B1=343000, B2=179978370
2018-02-16	Oliver Kruse	C-PRP	M4471939/1368738944515308397847 : 8DAD9004D598C8D6 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4471939/1368738944515308397847 : 8DAD9004D598C8D6 PRP: Verified PRP without proof (not generated)
2010-08-27	markr	F-PM1	Factor: 1368738944515308397847