#include <bits/stdc++.h>

struct vector_hash {
    size_t operator()(const std::vector<int>& v) const {
        std::hash<int> hasher;
        size_t seed = 0;
        for (int i : v) {
            seed ^= hasher(i) + 0x9e3779b9 + (seed<<6) + (seed>>2);
        }
        return seed;
    }
};

bool solve(int n, int x, const std::vector<int> &a_) {
	auto a = a_;
	if (n == 1) return x == a[0];
	if (std::count(a.begin(), a.end(), 1)) return true;
	std::sort(a.begin(), a.end());
	std::unordered_set<std::vector<int>, vector_hash> que;
	que.insert({x});
	while (que.size()) {
		if (que.begin()->size() == a.size()) {
			for (auto &i : que) if (i == a) return true;
			return false;
		}
		std::unordered_set<std::vector<int>, vector_hash> next;
		for (auto &i : que) {
			for (int j = 0; j < (int) i.size(); j++) {
				for (int k = 1; k < i[j]; k++) {
					if (i[j] % k == 0) continue;
					auto tmp = i;
					tmp.push_back(tmp[j] / k);
					tmp[j] %= k;
					std::sort(tmp.begin(), tmp.end());
					bool cancel = false;
					for (int l = 0; l < (int) tmp.size(); l++) {
						if (tmp[l] < a[l]) {
							cancel = true;
							break;
						}
					}
					if (!cancel) next.insert(tmp);
				}
			}
		}
		std::swap(que, next);
	}
	return false;
}

int main() {
	int n, x;
	scanf("%d%d", &n, &x);
	std::vector<int> a(n);
	for (int i = 0; i < n; i++) scanf("%d", &a[i]);
	
	clock_t r0 = clock();
	std::cout << (solve(n, x, a) ? "YES" : "NO") << std::endl;
	clock_t r1 = clock();
	std::cerr << (double) (r1 - r0) * 1000 / CLOCKS_PER_SEC << "ms" << std::endl;
	return 0;
}