import sys,math,itertools
from collections import Counter,deque,defaultdict
from bisect import bisect_left,bisect_right 
mod = 10**9+7
INF = float('inf')
def inp(): return int(sys.stdin.readline())
def inpl(): return list(map(int, sys.stdin.readline().split()))

n,h = inpl()
a = inpl()
now = 1
for x in a:
    now *= x
    now %= h
print('YES' if now == 0 else 'NO')