Question

Write these numbers as a product of prime factors, giving your answer in index form: a. 21 b. 128 ​

Answer 1

Answer:

128 = 2 x 2 x 2 x 2 x 2 x 2 x 2

Step-by-step explanation:

128 = 2 x 64

     = 2 x (8 x 8)

     = 2 x (2 x 2 x 2) x (2 x 2 x 2)