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Express 140 as a product of its prime factors.

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22 × 5 × 7

23 × 5 × 7

24 × 5 × 7

25 × 5 × 7

answer is A.

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Detailed Solution

Given a number 140.
The prime factors are,

= 140 = 2 × 2 × 5 × 7 = 22 × 5 × 7

The product of prime factors of 140 are

22 × 5 × 7

.
Hence, option 1 is correct.

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