2 363 857 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 1 known prime factor. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
78017233915888793	17	56.1	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	121 / 640

Estimated T-Level: 25.9 ⓘ

TF below 2^81 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)	2017-10-12	Oliver Kruse	4D009480473E356E	1	472992	5	3
Verified	PRP without proof (not generated)	2017-11-24	storm5510	4D009480473E356E	1	1555612	5	3

History

Date	User	Type	Result
2018-04-27	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-24	storm5510	C-PRP	M2363857/78017233915888793 : 4D009480473E356E
2017-10-12	Oliver Kruse	C-PRP	M2363857/78017233915888793 : 4D009480473E356E

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