print primeCheck(13)

end

function primeCheck(x)
   for num = x to 0 step -1
        if x/num = int(x/num) and num > 1 then
            primeCheck = 0
            exit for
        end if
        if x/num = 1 and x <> num  then
            primeCheck = 1
            exit for
        end if
   next num

end function