Which number has 3 as one of its factors?, 22, 31, 10, 18, What is the HCF of 18 and 24?, 2, 6, 8, 12, What is the HCF of 10 and 20?, 2, 10, 4, 1, Which number is a factor of both 10 and 40?, 1, 4, 10, 15, What is the HCF of 21 and 28?, 1, 7, 14, 21, What is the HCF of 15 and 35?, 15, 10, 2, 5, What is the HCF of 34 and 68?, 2, 12, 24, 34, What is the HCF of 24 and 12?, 1, 12, 15, 2, What is the HCF of 10d and 2d?, 5d, 2d, 2, 6, What is the HCF of 14k and 7?, 7, 14, k, 7k, 14k

Highest Common Factor (HCF)

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