Question

Find the HCF of 420 and 680 using Euclid’s division algorithm

Answer 1

420 = 22 × 3 × 5 × 7;

420 = 22 × 3 × 5 × 7;420 is not a prime, is a composite number;

420 = 22 × 3 × 5 × 7;420 is not a prime, is a composite number;680 = 23 × 5 × 17;

420 = 22 × 3 × 5 × 7;420 is not a prime, is a composite number;680 = 23 × 5 × 17;680 is not a prime, is a composite number;

* Positive integers that are only dividing by themselves and 1 are called prime numbers. A prime number has only two factors: 1 and itself.