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| ab-1 is not a square (Posted on 2025-04-11) |
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Let d be any positive integer not equal to 2, 5, or 13.
Show that one can find a,b in the set {2,5,13,d} such that ab-1 is not a square.
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 | Hi everyone | bindingscorch | 2025-04-24 23:39:17 |
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