The smallest number with three different prime factors is 2 × 3 × 5 = 30. These are the smallest primes, and their product yields the smallest composite number meeting the condition.
Class 6 Mathematics Ganita Prakash Prime Time
Class 6 Mathematics Chapter 5 Prime Time question answer
To find the smallest number with three distinct prime factors, multiply the smallest primes: 2,3, and 5. Their product is 2 × 3 × 5 = 30, which is the smallest composite number formed by these factors. Including additional primes or larger primes would increase the result, making 30 the minimal solution that satisfies the requirement of having three different prime factors.
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