C语言 | Leetcode C语言题解之第263题丑数-题解：

bool isUgly(int n) {
    if (n <= 0) {
        return false;
    }
    int factors[] = {2, 3, 5};
    for (int i = 0; i < 3; i++) {
        while (n % factors[i] == 0) {
            n /= factors[i];
        }
    }
    return n == 1;
}