# import sys
# import math #sqrt,gcd,pi,factorial
# import decimal
# import queue # queue
# import bisect
# import heapq # priolity-queue
# from time import time
# from itertools import product,permutations,\
#     combinations,combinations_with_replacement
# 重複あり順列、順列、組み合わせ、重複あり組み合わせ
# import collections # deque
# from operator import itemgetter,mul
# from fractions import Fraction
# from functools import reduce

mod = int(1e9+7)
# mod = 998244353
INF = 1<<50

def readInt():
    return list(map(int,input().split()))

def Divisors(a):
    divisors = []
    for i in range(1,int(a**0.5)+1):
        if a%i==0:
            divisors.append(i)
            if i!=a//i:
                divisors.append(a//i)
    divisors.sort()
    return divisors

def main():
    n,h = readInt()
    a = readInt()
    ans = 1
    for i in range(n):
        ans *= a[i]
    if ans%h==0:
        print("YES")
    else:
        print("NO")
    return

if __name__=='__main__':
    main()