A pair of numbers has an HCF (Highest Common Factor) of 3, and an LCM (Lowest Common Multiple) of

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A pair of numbers has an HCF (Highest Common Factor) of 3, and an LCM (Lowest Common Multiple) of 45 . If one of the numbers in the pair is 15 , what is the other number?

1. Prime Factorization for 15 is 3 * 5
2. Prime Factorization for 9 is 3 * 3
3. LCM of (9, 15) = 35

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