(i) 108 x 192
= 2 × 2 × 3 × 3 × 3 2 × 2 × 2 × 2 × 2 × 2 × 3
= 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3
= 28 × 34
It is the product of prime factor
(ii) 270
270 = 2 × 3 × 3 × 3 × 5
= 2 × 33 × 5
It is required prime factor.
(iii) 729 × 64
729 = 3 × 3 × 3 × 3 × 3 × 3
64 = 2 × 2 × 2 × 2 × 2 × 2
∴ 729 × 64 = 36 × 26
It is the required prime factor.
(iv) 768
768 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3
= 28 × 31 or = 28 × 3
It is required prime factor.
