Question: ab Let a, b e Z*, let c = Show that: gcd(a,b)' (a) a |c and b| c; (b) If a | d and

ab Let a, b e Z*, let c = Show that: gcd(a,b)'

ab Let a, b e Z*, let c = Show that: gcd(a,b)' (a) a |c and b| c; (b) If a | d and b| d, then c | d; (c) c = min{d Z* : a |d Ab| d}. (We use ":" for "such that" here to avoid confusing with the divisibility symbol "|".)

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