2 214 491 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 2⁶²

Factored

Factor	Digits	Bits	Date
229797731071	12	37.7	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	190 / 640

Estimated T-Level: 26.5 ⓘ

TF below 2^83 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)	2017-10-09	Oliver Kruse	FDF3CE11372F7AD2	1	0	1	3
Verified	PRP without proof (not generated)	2017-11-21	storm5510	FDF3CE11372F7AD2	1	1233045	1	3

History

Date	User	Type	Result
2017-11-21	storm5510	C-PRP	M2214491/229797731071 : FDF3CE11372F7AD2
2017-10-09	Oliver Kruse	C-PRP	M2214491/229797731071 : FDF3CE11372F7AD2
2016-04-23	alpertron	NF-PM1	B1=500000, B2=15000000, E=12

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