Question

Find the HCF and LCM of the following numbers , giving your answers as a product of prime factors in index notation. 2 2 x 3 2 x 11 and 2 4 x 3 x 7

Answer 1

Step-by-step explanation:

The easiest way to find out LCM with the continuous division.

For example:-

LCM of 9,18

We will divide 9 and 18 with first prime number that is 2

The 18 becomes 9 because (9×2=18) but the 9 will remain same as 9 only.

Then we will divide with the fourth composite number that is 9.

Then all 9s will become 0 because (9×1=9).

Now HCF of 9 ,18 is 9 because 9 is the common and smallest number in 9 and 18.

Thus, HCF of 9 and 18 is 9.

LCM of 9 and 18 is 18.

Answer 2

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Step-by-step explanation:

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