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Earn +20 ptsQ: What is hcf of 14 and 21 and 63?
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What is the hcf of 63 and 84?
It is: 21
What is the HCF of 42 and 63?
The GCF is 21.
HCF of 42 63 105 and 294?
The GCF is 21.
What is the HCF and LCM of 63 and 21?
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.
What are the factors of 112 and 63?
The HCF of 112 and 63 is 7
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