Question

HCF of 21 and 42 and 70​

Answer 1

Answer:

7

Step-by-step explanation:

We will find the HFC by common factorisation method.

21 = 3×7

42 = 2×3×7

70 = 2×5×7

Here 7 is the only common factor in all numbers.

So HFC of 21, 42 and 70 is 7

hope it helps.

Answer 2

7

is the HCF of 21, 42 and 70