Q14 of 114 Page 43

Find the HCF of 1008 and 1080 by prime factorization method.

Prime factors of numbers are -

1008 = 2 × 2 × 2 × 2 × 3 × 3 × 7

1080 = 2 × 2 × 2 × 3 × 3 × 3 × 5

HCF = 2 × 2 × 2 × 3 × 3 = 72

Give an example of two irrationals whose sum is rational.

Give prime factorization of 4620.

Find the HCF and LCM of , and .

Find the largest number which divides 546 and 764, leaving remainders 6 and 8 respectively.