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1). 140

2). 156

3) 3825

4). 5005

5). 7429

Answer :

140 = \(2 × 2 × 5 × 7\) = \(2^2 × 5 × 7 \)

156 = \(2 × 2 × 3 × 13\) = \(2^2 × 3 × 13 \)

3825 = \(3 × 3 × 5 × 5 × 17\) = \(3^2 × 5^2 × 17 \)

5005 = \(5 × 7 × 11 × 13\)

7429 = \(17 × 19 × 23\)

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