perplexus.info :: Numbers : Matching pairs

Matching pairs (Posted on 2015-07-24)

(7,13); (73,137); (41,271);

Both members of each of the above sets share a certain unique feature.

What feature ?

Submitted by Ady TZIDON

Rating: 5.0000 (1 votes)

Solution: (Hide)

Both reciprocals of the matched numbers, when written as a decimal fraction have periods of the same length.

Comments: ( You must be logged in to post comments.)

	Subject	Author	Date
	Solution	Math Man	2015-07-24 14:32:07

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