• Numerical Ability - Number System
Question

The smallest 3 digit prime number is :

  • A) 101
  • B) 107
  • C) 109
  • D) 113
  • E) None of these
Solution

Answer:A(101) 
Explanation:

The smallest 3-digit number is 100, which is divisible by 2.

∴ 100 is not a prime number.

√101< 11 and 101 is not divisible by any of the prime numbers 2, 3, 5, 7, 11.

∴101 is a prime number.

Hence 101 is the smallest 3-digit prime number.

Answer:A(101) 
Explanation:

The smallest 3-digit number is 100, which is divisible by 2.

∴ 100 is not a prime number.

√101< 11 and 101 is not divisible by any of the prime numbers 2, 3, 5, 7, 11.

∴101 is a prime number.

Hence 101 is the smallest 3-digit prime number.
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