If a and b are prime numbers and one the value of them is 2, which of the following CANNOT be the value of ab? Choices:
A) 9 B) 14 C) 21 D) 24 E) 25
Here one the prime number is 2,so the answer should be the double of a prime number,which is14=7/2..   ans 14
<result>B</result>
If a and b are prime numbers and one the value of them is 2, which of the following CANNOT be the value of ab?