Question

7 is a prime number. No multiple of 7, except 7 itself, can be a prime number. Explain why not.

Answer 1

Answer:   Answer is in the steps.

Step-by-step explanation:

No multiple of 7 can be a prime number because then it will   have more than two factors.7 is a prime number because it has only two factors 1 and itself.  For example, 14 is a multiple of 7 because 7 times 2 is 14. But now it  14 itself will not be a prime number because it has more than two factors which  is 1,2,7 and 14.