(Q7). Find the HCF and LCF of the following given pairs of numbers by prime factorisation method 37,49.

HCF of numbers = Product of the smallest power of each common - prime factors of the number

LCM of numbers = Product of greatest power of each prime factors of the number.

37 = ×1

49 = 2

HCF =

LCM = 37 × 72 =

HCF =

LCM =