题意还算清晰，照着来即可，但是会爆int，int只得了66分

int main() {
	int n;
	while (cin >> n) {
		vec v;
		for (int i = 2; i <= sqrt(n) && n > 1; i++) {
			while (n%i == 0) {
				v.push_back(i); n /= i;
			}
		}
		if (n != 1)v.push_back(n);
		ll sign = 1, t = 0, i = 0, j = 0; string s;
		for (i; i < v.size(); i = j) {
			int cnt = 1;
			for (j = i + 1; j < v.size() && v[j] == v[i]; j++) {
				cnt++;
			}
			if (cnt > 1)s += to_string(v[i]) + to_string(cnt);
			else s += to_string(v[i]);
		}
		if (s.size() > 0)t = stoll(s);
		for (int i = 2; i <= sqrt(t) && sign; i++) {
			if (t%i == 0)sign = 0;
		}
		cout << t << endl;
		if (sign&&t > 1)cout << "Yes" << endl;
		else cout << "No" << endl;
	}
}