2 263 087 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
31524801911	11	34.9	old
239527778607494401	18	57.7	2015-07-13 10:36:00

ECM

Digits	B1	Curves
25	50000	46 / 280

Estimated T-Level: 20.8 ⓘ

TF below 2^64 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-12	kkmrkkblmbrbk	84CD04FB444030E2	2	1506601	5	3
Verified	2017-10-29	Oliver Kruse	84CD04FB444030E2	2	1554635	5	3

History

Date	User	Type	Result
2017-10-29	Oliver Kruse	C-PRP	M2263087/31524801911/239527778607494401 : 84CD04FB444030E2 PRP: Verified PRP without proof (not generated)
2017-10-12	kkmrkkblmbrbk	C-PRP	M2263087/31524801911/239527778607494401 : 84CD04FB444030E2 PRP: Verified PRP without proof (not generated)
2016-04-19	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-07-13	TJAOI	F	Factor: 239527778607494401 / TF: 57-58