Which of the following numbers is not prime? Select.
A) 396+103 B) 494+97 C) 159+159 D) 322-5 E) 121-11
159 is divisible by 3 so i can not be a prime number. --&gt; 3*(53+53). The correct choice is 159+159.
<result>C</result>
Which of the following numbers is not prime?