Mathematics
Grade-4-
Easy

Question

15 is a _______ number.

  1. Prime number    
  2. Composite number    
  3. Even    
  4. Single-digit    

Hint:

Find the number category by finding the factors

The correct answer is: Composite number


    15 has more factors than just 1 and itself.
    For example, 3 is a factor of 15:
    15 ÷ 3 = 5
    15 is not a prime number.

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