Prove that for any number

The way I approached it was by linear combinations

At this point I get stuck. I kind of wish there were some way of saying since it was a linear combination of 5,3, and 2 the gcd of the three must be one.

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- April 12th 2011, 02:32 PM #1

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- April 12th 2011, 03:07 PM #2

- April 12th 2011, 04:41 PM #3

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