import std;

void main() {
    auto input = readln.split.to!(long[]);
    auto N = input[0], H = input[1];
    auto A = readln.split.to!(long[]);

    long P = 1;
    foreach (i; 0 .. N) {
        P *= A[i];
        if (P % H == 0) {
            writeln("YES");
            return;
        }
    }
    writeln("NO");
}