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    Mathematics
    Grade10
    Easy

    Question

    Find the prime number that is a factor of 42.

    1. 6    
    2. 14    
    3. 3    
    4. 4    

    hintHint:

    Factor of a number is a number that divides the number completely without leaving a remainder. And a prime factor is a factor of the number that is not divisible by any other number except for itself and 1.

    The correct answer is: 3

      Step by step solution:
      42 = 1 x 42 = 2 x 21 = 3 x 14 = 6 x 7
      The factors of 42 are 1, 2, 3, 6, 7, 14, 21 and 42.
      The prime factors are 2, 3, and 7.
      Thus, from the given options 3 is the answer.
      Hence, option(c) is the correct option

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