Question $13($Mandatory$)(7\mathrm{.}5$ points$)$

What is the best choice for the header line of a method that returns whether or not an integer is prime?

Question $13$ options:

int Prime $($boolean Number$)$

float isPrime $($int Number$)$

int isPrime $($int Number$1,$ int Number$2)$

boolean isPrime $($int Number$)$