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Question

Determine the HCF of following pairs by finding factors:

(c) 16 and 48


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Solution

Step 1: Find the factors of 16 and 48.

1×16=162×8=164×4=16

As 16 is divisible by 1,2,4,8 and 16.

So the factors of 16 are: 1,2,4,8 and 16.

Also,

1×48=482×24=483×16=484×12=486×8=48

As 48 is divisible by 1,2,3,4,6,8,12,16,24 and 48.

So the factors of 48 are: 1,2,3,4,6,8,12,16,24 and 48.

Step 2: Find the HCF of 16 and 48.

Factors of 16 are: 1,2,4,8 and 16.

Factors of 48 are: 1,2,3,4,6,8,12,16,24 and 48.

Common factors of 16 and 48 are 1,2,4,8 and 16.

Hence, the HCF of 16 and 48 is 16.


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