2 447 399 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
6959639167513	13	42.7	old
136467638827327	15	47.0	2008-09-07 10:06:00

ECM

Digits	B1	Curves
25	50000	126 / 280

Estimated T-Level: 22.3 ⓘ

TF below 2^69 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-10-13	Oliver Kruse	55547AFDC4A708BD	2	1091419	5	3
Verified	PRP without proof (not generated)	2017-11-28	storm5510	55547AFDC4A708BD	2	439441	5	3

History

Date	User	Type	Result
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-28	storm5510	C-PRP	M2447399/6959639167513/136467638827327 : 55547AFDC4A708BD
2017-10-13	Oliver Kruse	C-PRP	M2447399/6959639167513/136467638827327 : 55547AFDC4A708BD
2008-09-07	Will Edgington	F	Factor: 136467638827327

Username
Password