Hello,

Just note that since 10=5x2, you may want to have a look at (10n+3)-2(5n+2) that's a common method : find a linear combination that cancels n and the result will be a multiple of the gcd!

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

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

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

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