Question

how to do 20,30 by common division method HCF ​

Answer 1

Answer:

Method 1: HCF of 20 and 30 by Long Division

First of all, divide 30 by 20 and check the remainder. Now, make the remainder of the above step as the divisor and the divisor of the above step as the dividend and perform the long division again. Done! Now continue with the same process till you get remainder as 0.

Answer 2

Answer:

20; 30) = 10

prime factorization of 20

=2×2×5

prime factorization of 30

=2×3×5

common factors=2×5

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