2 440 807 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
4342527602753	13	42.0	old
2228364798194810273	19	61.0	2016-03-17 12:48:34

ECM

Digits	B1	Curves
25	50000	128 / 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	40DA52A194D942B1	2	1284329	5	3
Verified	PRP without proof (not generated)	2017-11-27	storm5510	40DA52A194D942B1	2	351154	5	3

History

Date	User	Type	Result
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-27	storm5510	C-PRP	M2440807/4342527602753/2228364798194810273 : 40DA52A194D942B1
2017-10-13	Oliver Kruse	C-PRP	M2440807/4342527602753/2228364798194810273 : 40DA52A194D942B1
2016-03-17	TJAOI	F	Factor: 2228364798194810273

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