Go: package main

import (
	"bufio"
	"fmt"
	"io"
	"math"
	"os"
	"strconv"
	"strings"
)

func main() {
	fmt.Println(resolve(parseProblem(os.Stdin)))
}

func parseProblem(r io.Reader) int {
	const (
		initialBufSize = 100000
		maxBufSize     = 1000000
	)
	buf := make([]byte, initialBufSize)

	sc := bufio.NewScanner(r)
	sc.Buffer(buf, maxBufSize)
	sc.Split(bufio.ScanWords) // bufio.ScanLines
	p, q := scanInt(sc), scanInt(sc)
	base := 1
	d := newRational(p, q).denomi
	for k := range primeFactories(d) {
		base *= k
	}
	return base
}

func isPrime(n int) bool {
	for i := 2; i*i <= n; i++ {
		if n%i == 0 {
			return false
		}
	}
	return true
}

func eratosthenes(n int) []bool {
	t := make([]bool, n)
	for i := 2; i < len(t); i++ {
		t[i] = true
	}
	for i := 2; i < len(t); i++ {
		if !t[i] {
			continue
		}
		for j := 2; j*i < len(t); j++ {
			t[j*i] = false
		}
	}
	return t
}

func primes(n int) chan int {
	ch := make(chan int)
	go func() {
		t := eratosthenes(n)
		for i := 2; i < len(t); i++ {
			if !t[i] {
				continue
			}
			ch <- i
		}
		close(ch)
	}()
	return ch
}

func primeFactories(n int) (terms map[int]int) {
	terms = map[int]int{}
	num := n
	for f := 2; f*f <= n; f++ {
		if num%f != 0 {
			continue
		}
		ex := 0
		for num%f == 0 {
			num /= f
			ex++
		}
		terms[f] = ex
	}
	if num > 1 {
		terms[num] = 1
	}
	return
}

type rational struct {
	frac, denomi int
	neg          int
}

func newRational(frac, denomi int) rational {
	r := rational{frac: frac, denomi: denomi}
	r.canonicalize()
	return r
}

func ratMul(x, y rational) rational {
	r := rational{
		frac:   x.frac * y.frac,
		denomi: x.denomi * y.denomi,
	}
	r.canonicalize()
	return r
}

func ratDiv(x, y rational) rational {
	return ratMul(x, ratInv(y))
}

func ratInv(x rational) rational {
	return rational{frac: x.denomi, denomi: x.frac}
}

func ratAdd(x, y rational) rational {
	r := rational{
		frac:   x.frac*y.denomi + y.frac*x.denomi,
		denomi: x.denomi * y.denomi,
	}
	r.canonicalize()
	return r
}

func ratSub(x, y rational) rational {
	return ratAdd(x, rational{frac: -y.frac, denomi: y.denomi})
}

func (r rational) Float64() float64 {
	b := float64(r.frac) / float64(r.denomi)
	if r.neg == 1 {
		return -b
	}
	return b
}

func (r rational) String() string {
	b := fmt.Sprintf("%d/%d", r.frac, r.denomi)
	if r.neg == 1 {
		return "-" + b
	}
	return b
}

func (r rational) equal(other rational) bool {
	r.canonicalize()
	other.canonicalize()

	return r.neg == other.neg &&
		r.frac == other.frac &&
		r.denomi == other.denomi
}

func (r *rational) canonicalize() {
	if r.frac < 0 {
		r.neg ^= 1
		r.frac = -r.frac
	}
	if r.denomi < 0 {
		r.neg ^= 1
		r.denomi = -r.denomi
	}
	d := gcd(r.frac, r.denomi)
	r.frac /= d
	r.denomi /= d
}

func nextRational(sc *bufio.Scanner) rational {
	s := nextString(sc)
	i := strings.Index(s, ".")
	if i != -1 {
		decimalDigit := len(s) - i - 1
		fr, _ := strconv.Atoi(strings.Replace(s, ".", "", 1))
		return newRational(fr, int(math.Pow10(decimalDigit)))
	}
	i = strings.Index(s, "/")
	if i != -1 {
		fr, _ := strconv.Atoi(s[0:i])
		de, _ := strconv.Atoi(s[i+1 : len(s)])
		return newRational(fr, de)
	}
	fr, _ := strconv.Atoi(s)
	return newRational(fr, 1)
}
func gcd(a, b int) int {
	for b > 0 {
		t := a / b
		a, b = b, a-t*b
	}
	return a
}
func nextInt(sc *bufio.Scanner) int {
	sc.Scan()
	a, _ := strconv.Atoi(sc.Text())
	return int(a)
}

func nextString(sc *bufio.Scanner) string {
	sc.Scan()
	return sc.Text()
}

func resolve(n int) int {
	return n
}

// snip-scan-funcs
func scanInt(sc *bufio.Scanner) int {
	sc.Scan()
	i, _ := strconv.Atoi(sc.Text())
	return int(i)
}
func scanString(sc *bufio.Scanner) string {
	sc.Scan()
	return sc.Text()
}

Python: # -*- coding: utf-8 -*-
import math
p, q = map(int, input().split())
g = math.gcd(p, q)
p, q = p // g, q // g;
ret = q
for b in range(1, 40000):
    if b ** 1000 * p % q == 0:
        ret = min(ret, b)
print(ret)

Python: # -*- coding: utf-8 -*-
p, q = map(int, input().split())
ret = q
for b in range(1, 100000):
    if b ** 1000 * p % q == 0:
        ret = min(ret, b)
print(ret)

Python: import math
f=lambda n:min(int(i) for i in (round(n**(1/i),10) for i in range(1,int(math.log(n,2))+2)) if int(i)==i)
p,q=map(int,input().split())
if f(q)==q:
    e=math.gcd(p,q)
    q/=e
e=f(q)
if f(q)!=q:
    q/=e
print(int(q))

Python: prime = [2]
def check(x):
    for i in prime:
        if x % i ==0:
            return False
        elif x < i * i:
            break
    return True

def set():
    for i in range(3,10**5,2):
        if check(i):
            prime.append(i)


set()
#print('ok')
#print(prime)
p,q = [int(i) for i in input().split(' ')]
if q % p == 0:
    q = q //p
    p = 1
for i in prime:
    while True:
        if p % i ==0 and q % i == 0:
            p = p // i
            q = q // i
            #print(p,q,i)
        else:
            break
 
ans = 1
#print(p,q)
for i in prime:
    if q % i == 0:
#        print(q,i)
        q = q // i
        ans *= i
        while q % i ==0:
            q = q // i
            
ans *= q
    

print(ans)

Python: import math
# import numpy as np  # Pythonのみ！
# from operator import xor
# import re
# from scipy.sparse.csgraph import connected_components  # Pythonのみ！
# ↑cf.  https://note.nkmk.me/python-scipy-connected-components/
# from scipy.sparse import csr_matrix
# import string
import sys
sys.setrecursionlimit(10 ** 5 + 10)
def input(): return sys.stdin.readline().strip()

def resolve():
    
    p,q=map(int,input().split())
    g=math.gcd(p,q)

    p//=g
    q//=g

    
    
    # cf. https://qiita.com/suecharo/items/14137fb74c26e2388f1f
    def make_prime_list_2(num):
        if num < 2:
            return []
    
        # 0のものは素数じゃないとする
        prime_list = [i for i in range(num + 1)]
        prime_list[1] = 0  # 1は素数ではない
        num_sqrt = math.sqrt(num)
    
        for prime in prime_list:
            if prime == 0:
                continue
            if prime > num_sqrt:
                break
    
            for non_prime in range(2 * prime, num, prime):
                prime_list[non_prime] = 0
    
        return [prime for prime in prime_list if prime != 0]
    
    
    def prime_factorization_2(num):
        """numの素因数分解
        素因数をkeyに乗数をvalueに格納した辞書型dict_counterを返す"""
    
        if num <= 1:
            # 例えば1を食ったときの対処の仕方は問題によって違うと思うのでそのつど考える。
            # cf. https://atcoder.jp/contests/abc110/submissions/12688244
            return False
        else:
            num_sqrt = math.floor(math.sqrt(num))
            prime_list = make_prime_list_2(num_sqrt)
    
            dict_counter = {}  # 何度もこの関数を呼び出して辞書を更新したい時はこれを引数にして
            # cf. https://atcoder.jp/contests/arc034/submissions/12251452
    
            for prime in prime_list:
                while num % prime == 0:
                    if prime in dict_counter:
                        dict_counter[prime] += 1
                    else:
                        dict_counter[prime] = 1
                    num //= prime
            if num != 1:
                if num in dict_counter:
                    dict_counter[num] += 1
                else:
                    dict_counter[num] = 1
    
            return dict_counter

    d=prime_factorization_2(q)
    ans=1
    for k in d.keys():
        ans*=k
    print(ans)
resolve()