Question

Find the HCF of 91 and 112 and 49

Answer 1

Here
91 = 7,13
112 = 2,2,2,2,7
49 = 7,7
Here 7 is common
So HCF is 7

Answer 2

HCF of 91 , 112 and 49 is 7

Given :

The numbers 91 , 112 and 49

To find :

HCF of 63, 105 and 147

Solution :

Step 1 of 3 :

Write down the given numbers

The given numbers are 91 , 112 and 49

Step 2 of 3 :

Prime factorise the given numbers

91 = 7 × 13

112 = 2 × 2 × 2 × 2 × 7

49 = 7 × 7

Step 3 of 3 :

Find HCF of 91 , 112 and 49

We know that for the given two or more numbers HCF is the greatest number that divides each of the numbers

Hence the required HCF

= HCF of 91 , 112 and 49

= 7

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