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Question
Find the HCF of the following number.
45, 30
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Solution
Factors of 45: 1, 3, 5, 9, 15, 45
Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
Common factors of 45 and 30: 1, 3, 5, 15
∴ HCF of 45 and 30 = 15
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