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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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Solution :

i) 140

Take  LCM of 140 i.e  2×2×5×7×1

Hence,  140=2×2×5×7×1

ii) 156

Take LCM of 156 i.e 2×2×13×3×1

Hence, 156=2×2×13×3×1


Take  LCM of 3825 i.e 3×3×5×5×17×1

Hence, 3825=3×3×5×5×17×1


Take LCM of 5005 i.e 5×7×11×13×1

Hence, 5005=5×7×11×13×1


Take LCM of 7429 i.e 17×19×23×1

Hence, 7429=17×19×23×1

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