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Q: Which one of the following is not a prime number?

  • 1
    91
  • 2
    71
  • 3
    41
  • 4
    31
  • Show Answer
  • Workspace

Answer : 1. "91"
Explanation :

Answer: A) 91 Explanation: Prime Numbers :: Numbers which are divisible by only 1 and itself are Prime Numbers.   It's answer will be 91. Because 91 can be divisible by 7,13,91,1. It is quite clear that prime number should be divisible only by itself and by 1.

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