Q.4 Express each of the following as a product of prime factors only in exponential form:
(i) 108 × 192
(ii) 270
(iii) 729 × 64
(iv) 768
=$$2^8 × 3^4$$
(ii) $$270 = 2×3×3×3×5 = 2×3^3×5$$
$$=3^6 × 2^6$$
(iv) 768 = 2×2×2×2×2×2×2×2×3 = $$2^8 ×3$$