import math
def factorize(n):
    ''' returns a list of prime factors of n.
    ex. factorize(24) = [2, 2, 2, 3]
    source: Rossetta code: prime factorization (slightly modified)
    http://rosettacode.org/wiki/Prime_decomposition#Python:_Using_floating_point
    '''
    step = lambda x: 1 + (x<<2) - ((x>>1)<<1)
    maxq = int(math.floor(math.sqrt(n)))
    d = 1
    q = n % 2 == 0 and 2 or 3
    while q <= maxq and n % q != 0:
        q = step(d)
        d += 1
    return q <= maxq and [q] + factorize(n//q) or [n]

N, K = map(int, input().split())
factors = factorize(N)
print(N // factors[0])