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What are two composite numbers that have a greatest common divisor of 4 and a sum of 28?
Wiki User
∙ 14y ago
The composite numbers upto 28 are: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28.
Of these the ones that sum to 28 are: 4 and 24, 6 and 22, 8 and 20, 10 and 18, and 12 and 16. And out of these pairs the ones that have a gcd of 4 are: 4 and 24, 8 and 20, and 12 and 16.
So two composite numbers that have a gcd of 4 and a sum of 28 can be either: 4 and 24, 8 and 20, or 12 and 16.
Wiki User
∙ 14y ago
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