=+=Cyber Savages=+=
*MATHEMATICS - Question 1*
"I dont really have much choice, so Mathematics," said Darren. Maths wasn't really his best subject.

"DON'T WORRY - THIS ISN'T TOO TOUGH," conforted Klorgy. "HERE'S YOUR NEXT QUESTION."

Question 1 : Which of the following is a prime number?

2
4
18

A calculator doesn't really help here :( But it's kinda easy...