Unformatted text preview: your answer. Problem 3 . Suppose that p , q and r are prime numbers and that p is odd. If p | 2 q + r and p | 2 q-r , prove that q = r . Problem 4 . Show that for all positive integers a and b we have a ± ± b if and only if a 2 ± ± b 2 . 1...
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- Spring '08
- Integers, Natural number, Prime number