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Express each number as a product of its prime factors `(i) 140              (ii) 156             (iii) 3825          (iv) 5005            (v) 7429`

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1)140=2*2*5*7
2)156=2*2*3*13
3)3825=3*3*5*5*17
4)5005=5*7*11*13
5)7429=17*19*23
We can see that after multiplying they form the given no.

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