import math
def is_prime(x):
    if x < 2: return False
    if x == 2 or x == 3 or x == 5: return True
    if x % 2 == 0 or x % 3 == 0 or x % 5 == 0: return False

    prime = 7
    step = 4
    while prime <= math.sqrt(x):
        if x % prime == 0: return False

        prime += step
        step = 6 - step

    return True


n,k = map(int,raw_input().split())

if is_prime(n):
    print 1
    quit()

i = 2
while i**2 <= n:
    if n % i == 0:
        print n/i
        quit()
    i += 1