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  1. Chapter 3 Class 6 Playing with Numbers
  2. Serial order wise
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Ex 3.5, 12 I am the smallest number, having four different prime factors. Can you find me?Smallest number having 4 different Prime factors Will have Smallest four prime numbers as factors ∴ Factors are 2, 3, 5, 7 Smallest number = 2 × 3 × 5 × 7 = 210 ∴ Required number is 210

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CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 8 years. He provides courses for Practical Accounts, Taxation and Efiling at teachoo.com .