2 137 813 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 3 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
3022867583	10	31.5	old
10304900841922697	17	53.2	2014-09-10 11:22:31
58647351637930177	17	55.7	2015-02-09 12:38:23

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	149 / 640

Estimated T-Level: 26.2 ⓘ

TF below 2^82 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-08	Oliver Kruse	909F928159E82607	1	0	1	3
Verified	2017-10-17	Oliver Kruse	307666D15FDF3BFA	3	56189	5	3
Verified	2017-11-18	kkmrkkblmbrbk	307666D15FDF3BFA	3	467242	5	3

History

Date	User	Type	Result
2017-11-18	kkmrkkblmbrbk	C-PRP	M2137813/3022867583/10304900841922697/58647351637930177 : 307666D15FDF3BFA PRP: Verified PRP without proof (not generated)
2017-10-17	Oliver Kruse	C-PRP	M2137813/3022867583/10304900841922697/58647351637930177 : 307666D15FDF3BFA PRP: Verified PRP without proof (not generated)
2017-10-08	Oliver Kruse	C-PRP	M2137813/3022867583/10304900841922697/58647351637930177 : 909F928159E82607 PRP: Verified PRP without proof (not generated)
2016-03-26	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-02-09	TJAOI	F	Factor: 58647351637930177 / TF: 55-56
2014-09-10	TJAOI	F	Factor: 10304900841922697 / TF: 53-54