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What is the HCF of 45 and 36?

Updated: 4/28/2022
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12y ago

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To find the HCF of two numbers you first have to split them into their prime factors:

45 = 3x3x5

36 = 2x2x3x3

The next step is to identify any common prime factors. In this example, both numbers have two 3s as prime factors. Multiply these together and you get:

3x3 = 9

Thus the hcf of 45 and 36 is 9.

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12y ago
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Q: What is the HCF of 45 and 36?
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