# your code goes here
N,K=(int(i) for i in input().split())
i=2
g=[0]
if N%K==0:
    g=[N//K]
    g.append(1)
while g[-1]!=1:
    if N//K<2:
        g.append(1)
    elif N//K<3 and N%2==1:
        g.append(1)
    j=i
    while N%j!=0 and j*j<=N and g[-1]!=1:
        j+=1
    if j*j<=N:
        i=j
        g.append(j)
        N//=j
    else:
        g.append(1)
    if g[0]==0:
        g[0]=1
p=1
for i in range(len(g)):
    p*=g[i]
print(p)