Question: Exercise 4. Let a and b be positive integers. Show that ged(a, b)+lem(a, b)-a+b if and only if a divides b, or b divides

Exercise 4. Let a and b be positive integers. Show that

Exercise 4. Let a and b be positive integers. Show that ged(a, b)+lem(a, b)-a+b if and only if a divides b, or b divides

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