import sys
import copy
N,H = map(int,input().split())
lsA = list(map(int,input().split()))
def factorization(a):#素因数分解√N
    arr = []
    temp = a
    for i in range(2, int(-(-a**0.5//1))+1):
        if temp%i==0:
            cnt=0
            while temp%i==0:
                cnt+=1
                temp //= i
            arr.append([i, cnt])
    if temp!=1:
        arr.append([temp, 1])
    if arr==[]:
        arr.append([a, 1])
    return arr #[素因数、個数]
if 0 in lsA:
    print('YES')
    sys.exit()
if H == 1:
    print('YES')
    sys.exit()
lsp = factorization(H)
for i in range(N):
    if not lsp:
        print('YES')
        sys.exit()
    k = lsA[i]
    for j in range(len(lsp)):
        p = lsp[j][0]
        while k % p == 0:
            lsp[j][1] -= 1
            k //= p
    lsp2 = []
    for j in range(len(lsp)):
        if lsp[j][1] > 0:
            lsp2.append(lsp[j])
    lsp = copy.copy(lsp2)
if not lsp:
    print('YES')
    sys.exit()
print('NO')