A number is 2^4 × 3 × 5^2. Pairing 2s with 5s, what is the number?

1200. Pair two 2s with the two 5s: 2^2 × 5^2 = 100. What is left is 2^2 × 3 = 12. So the number is 12 × 100 = 1200.

A number is $2^{4} \times 3 \times 5^{2}$ . Pairing 2s with 5s, what is the number?

Class 7Prime Factors in Exponent FormNumber System

Pair two 2s with the two 5s:

2^{2} \times 5^{2} = 100

. What is left is

2^{2} \times 3 = 12

. So the number is

12 \times 100 = 1200

Answer: B) 1200

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