perplexus.info :: Just Math : Integer Divisor Illation

Integer Divisor Illation (Posted on 2015-01-10)

Given that N is a positive integer, can any divisor of N² + N - 1 end in 3 or 7?
If so, give an example.
If not, prove it.

See The Solution Submitted by K Sengupta

Rating: 5.0000 (1 votes)

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	Subject	Author	Date
	Possible solution	broll	2015-01-11 02:35:48

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