limit = 42

def isPrime(n)
    if ((n % 2) = 0) or ((n % 3) = 0)
        return false
    end
    d = 5
    while (d * d) <= n
        if (n % d) = 0
            return false
        end
        d += 2
        if (n % d) = 0
            return false
        end
        d += 4
    end
    return true
end

i = limit
for (n = 0) (n < limit) (i += 1)
    if isPrime(i)
        n += 1
        print format("n = %-2d  %,19d\n", n, i)
        i += i - 1
    end
end