Problem:
Score : 400 points

Problem Statement

You are given integers N and M.

Consider a sequence a of length N consisting of positive integers such that a_1 + a_2 + ... + a_N = M. Find the maximum possible value of the greatest common divisor of a_1, a_2, ..., a_N.

Constraints

All values in input are integers.

1 \leq N \leq 10^5

N \leq M \leq 10^9

Input

Input is given from Standard Input in the following format:

N M

Output

Print the maximum possible value of the greatest common divisor of a sequence a_1, a_2, ..., a_N that satisfies the condition.

Sample Input 1

3 14

Sample Output 1

2

Consider the sequence (a_1, a_2, a_3) = (2, 4, 8). Their greatest common divisor is 2, and this is the maximum value.

Sample Input 2

10 123

Sample Output 2

3

Sample Input 3

100000 1000000000

Sample Output 3

10000

Solution in Python (3.4.3) (judge verdict: Runtime Error)

# これはエスパーですがMが素数ならNが何であってもできなさそう？未証明
# で 合成数のみっぽいので定石的に素因数分解すると
# 各項に因数をどれだけ割り振れるかみたいになる？
# -> サンプル1をみるとならなそう
# 最大公約数をgcdとすると、a*gcd*(N-1)+b*gcd = M となるのが都合よさそう こうなると右辺もgcdで割れるのでやはり約数のどれかになりそう
n, m = map(int, input().split())


def enum_divisor(n):
    ret = []
    for i in range(1, int(n**0.5)):
        if n % i == 0:
            ret.append(i)
    return ret


if m % n == 0:
    print(m // n)
    exit()
else:
    x = m // n
    # 要はx以下で最大のmの約数
    lis = enum_divisor(x)
    print(lis[-1])