Question

find the 18 and 63 lcm and hcf

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Answer 1

Answer:

The factors of 18 are 1, 2, 3, 6, 9 and 18.

The factors of 63 are 1, 3, 7, 9, 21 and 63.

So, the Highest Common Factor for these numbers is 9 because it divides all them without a remainder.

To find the LCM of 18 and 63, we should multiply them and then divide them by their HCF.

$\frac{18 \times 63}{9}$

$= 18 \times 7$

$= 126$

SO, THE HCF OF 18 AND 63 IS 9 AND THEIR LCM IS 126.

HOPE IT HELPS.

THANK YOU.