import std;

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

    if (A.count!"a == 0" > 0) {
        writeln("NO");
        return;
    }

    if (A.count!"a < 0" % 2) {
        writeln("NO");
        return;
    }

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