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Q: What is hcf of 14 and 21 and 63?

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It is 21

The GCF is 21.

It is: 21

The GCF is 21.

The HCF is 7.

The GCF is 7.

The HCF is 21.

The GCF is 21.

7

What is the h c f of 51 63 and 21

The hcf is 21

It is 1 but the HCF is 21

HCF(40, 63) = 1

First you need to break the numbers into their prime factors. In this case we get: 63 = 3x3x7 21 = 3x7 The next step is to identify any common prime factors. In this case both have a 3 and a 7 as prime factors. Multiply these together and you get 3x7 = 21. This is the HCF. To find the LCM you just multiply the numbers together and divide by the HCF. 63x21/21 = 63 Thus 63 is the LCM.

The GCF is 9.

The GCF is 9.

1

The factors of 14 are: 1, 2, 7, 14 The factors of 63 are: 1, 3, 7, 9, 21, 63

77－49＝28÷2＝〔14〕 21＋14＝35 35＋14＝49 49＋14＝63 63＋14＝77

The GCF is 63.

The HCF of 112 and 63 is 7

9

7

7

63

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