use proconio::{input, fastout};
use std::collections::HashMap;

#[fastout]
fn main() {
    input! {
        n: usize,
        h: usize,
        a: [usize; n]
    }

    let mut map = HashMap::new();
    let mut i = 2;
    let mut m = h;

    while i * i <= m {
        while m % i == 0 {
            m /= i;
            if map.contains_key(&i) {
                let x = map.get_mut(&i).unwrap();
                *x += 1;
            } else {
                map.insert(i, 1);
            }
        }
        i += 1;
    }
    if m > 1 {
        if map.contains_key(&m) {
            let x = map.get_mut(&m).unwrap();
            *x += 1;
        } else {
            map.insert(m, 1);
        }
    }

    for i in 0..n {
        if h == a[i] {
            println!("YES");
            return;
        }
        if map.contains_key(&a[i]) {
            let x = map.get_mut(&a[i]).unwrap();
            *x -= 1;
        }
    }

    for (_, v) in &map {
        if 0 < *v {
            println!("NO");
            return;
        }
    }

    println!("YES");
}