n = int(input()) A = list(map(int, input().split())) cnt = [0 for _ in range(max(A) + 1)] for i in range(n): cnt[A[i]] += 1 cnt_max = [0 for _ in range(n)] for i in range(1, max(A) + 1): m = sum(cnt[i::i]) if m != 0: cnt_max[n - m] = i ans = 1 for i in range(n): ans = max(ans, cnt_max[i]) print(ans)