Question

1) Find the H.CF of 12 and 18​

Answer 1

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• Factors of 12 = 1, 2, 3, 4, 6 and 12.
• Factors of 18 = 1, 2, 3, 6, 9 and 18.

∴ Common factor of 12 and 18 = 1, 2, 3 and 6.

• Highest common factor (H.C.F) of 12 and 18 = 6 [since 6 is the highest common factor].

Hope it helps

Answer 2

HCF of 12 is 2,2,3,1

hcf of 18 is 2,3,3,1