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Integer Divisibility Dilemma (Posted on 2014-04-10)

Find all positive integers X and Y such that:

Prove that there are no others.

See The Solution Submitted by K Sengupta

Rating: 4.5000 (2 votes)

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more answers

| Comment 2 of 6 |

If x = 1, then y can be 1, 2 or 4

If x = 2, then y can be 1 or 5

x can't equal 3

If x = 4, then y can be 7

x can't equal 5

x can't equal 6

if x = 7, then y can be 2

I'm tired of doing this in my head. I guess I'd better go to algebra

Posted by Steve Herman on 2014-04-10 10:48:40

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