Question

write the exponent of 3 in the prime factorisation of 162

Answer 1

2 | 162     
    3 | 81   
      3 |27   
         3 | 9  
             3 | 3  
                 1
162 = 2 × 3 × 3 × 3 × 3 = 2×3⁴
Exponent of 3 is 4.

Answer 2

162 = 2 × 3 × 3 × 3 × 3  = 2 × $3^{4}$