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What are the HCF of 15 and 20?

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Wiki User

2012-02-26 21:55:56

Best Answer

To find the HCF, you first have to express both numbers as the product of their prime factors:

15 = 3x5

20 = 2x2x5

The next step is to identify any common prime factors. In this case both numbers have a 5 as a prime factor. Therefore the HCF of 15 and 20 is 5.

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2012-02-26 21:55:56
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Anonymous

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2020-10-04 23:10:50
thanks
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Anonymous

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2020-07-23 15:39:38

5

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Ruqaiyyah Husman

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2021-05-11 23:10:39
Thank u so much

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Anonymous

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2020-07-23 15:40:19

2and5

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Anonymous

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2020-10-04 16:32:50

das

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