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Unformatted text preview: 6. Determine whether or not 2 3 3 2 11 5 can be expressed as the sum of two squares. (Justify your answer.) 7. Determine whether or not 3 3 17 can be expressed as the sum of three squares. (Justify your answer.) 8. Prove that if n is composite, then n can be written in the form n = x 2y 2 , with y + 1 < x . 9. Determine whether or not 8128 is a perfect number. 1...
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 Spring '08
 YEE
 Math, Number Theory

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