Go: package main

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

func getInputAsInt(in string) (int, int) {
	inArr := strings.Split(in, " ")
	// Atoi(s string) (i int, err error) のerrは捨てる
	val1, _ := strconv.Atoi(inArr[0])
	val2, _ := strconv.Atoi(inArr[1])
	return val1, val2
}

func euclidean(val1, val2 int) (int) {
	surp := 1
	for  {
		surp = val1 % val2
		if surp != 0 {
			val1 = val2
			val2 = surp
		} else {
			break
		}
	}
	return val2
}

func calcLCM(val1, val2, gcd int) (int) {
	return val1/gcd*val2
}

func main() {
	scanner := bufio.NewScanner(os.Stdin)
	
	for scanner.Scan() {
		val1, val2 := getInputAsInt(scanner.Text())
		gcd := euclidean(val1, val2)
		lcm := calcLCM(val1, val2, gcd)
		fmt.Println(gcd, lcm)
	}
}

Python: import sys

#最大公約数
def gcd(x, y):
    s = x / y
    r = x % y
    if r == 0:
        return y
    else:
        return gcd(y, r)

#最小公倍数
def lcm(x, y):
    return x*y/gcd(x, y)

def main():
    #print ("a")
    for line in iter(sys.stdin.readline, ""):
        #print (line)
        #tmp = sys.stdin.readline().split(" ")
        #print ("b")
        tmp = line.split(" ")
    
        a = int(tmp[0])
        b = int(tmp[1])
        #print ("a="+str(a))
        #print ("b="+str(b))
        #b = sys.stdin.readline()
        #print ("d")
        if a > b:
            c = a
            d = b
        else:
            c = b
            d = a

        print (str(gcd(c, d)) + " " + str(int(lcm(c,d))))

        #tmp = sys.stdin.readline()
        #if len(tmp) == 1:
        #    break
        #else:
        #    tmp = tmp.split(" ")

    #print ("exit")
     
if __name__ == "__main__":
    main()

Python: import sys;

def gcd(a, b):
    while b: a, b = b, a%b
    return a

for line in sys.stdin:
    a, b = list(map(int,input().split()))
    g = gcd(a, b)
    l = a * b // g
    print(g, l)

Python: def gcd(n1,n2):
    if n2==0:
        return n1
    return gcd(n2,n1%n2)

def lcm(n1,n2):
    return n1/gcd(n1,n2)*n2

while True:
    try:
        a,b=[int(i) for i in input().split()]
        print("{} {}".format(int(gcd(a,b)),int(lcm(a,b))))
    except:
        break

Python: def gcd(a,b):
	if a % b == 0:
		return b
	else:
		return gcd(b,a%b)
while True:
	try:
		a,b = map(int,input().split())
		d = gcd(max(a,b),min(a,b))
		print(d,a*b//d)
	except:
		break

Python: def gcd(a,b):
    while b != 0:
        a , b = b , a % b
    return a
def lcm(a,b):
    return int(abs(a*b) / gcd(a,b))

while True:
    try:
        a, b = [int(x) for x in input().split()]
    except:
        exit()
    print(gcd(a,b),lcm(a,b))

Python: import math, sys
def lcm(a,b):
    return int(a*b/math.gcd(a,b))

if __name__ == '__main__':
    for line in sys.stdin:
        a,b = map(int,line.split())
        print(math.gcd(a,b),lcm(a,b))

Python: import sys


def calc_gcd(x, y):
    """ ?????§??¬?´???°????¨?????????? """
    if y == 0:
        return x
    else:
        return int(calc_gcd(y, x % y))


def calc_lcm(x, y):
    """ ????°???¬?????°????¨?????????? """
    return int((x * y) / calc_gcd(x, y))


if __name__ == '__main__':
    # ??????????????\?????¨???????????????
    for line in sys.stdin:
        x, y = map(int, line.split(' '))
        print('{0} {1}'.format(calc_gcd(x, y), calc_lcm(x, y)))

Python: import math
import sys

for line in sys.stdin:
	x,y = [int(s) for s in line.split(' ')]
	G = math.gcd(x,y)
	L = int(x*y/G)
	print(G,L)

Python: import sys


def g(a, b):
    d = abs(a - b)
    return g(d, a) if a % d != 0 else d


def lcm(inta, intb, intgcd):
    return (inta * intb // intgcd)


sets = sys.stdin.readlines()
for line in sets:
    a, b = map(int, line.split())
    c = g(a, b)
    print(c, lcm(a,b,c))

Python: try:
    GCD = 0
    LCM = 0
    while True:
        lists = list(map(int, input().split()))
        l = sorted(lists)
        num = l[0] * l[1]
        while l[0] < l[1]:
            GCD = l[1] - l[0]
            l[1] = GCD
            l = sorted(l)
            LCM = int(num / GCD)
        print(GCD, LCM)
 
        
except EOFError:
    pass

Python: import math

while True:
  try:
    a, b = map(int, input().split())
    print(math.gcd(a, b), a * b // math.gcd(a, b))
  except:
    break

Python: import sys

def get_input():
    return map(int, input().split(' '))

def gcd(i,j):
    if i > j:
        if i % j == 0:
            return j
        else:
            return gcd(j, i % j)
    else:
        if j % i == 0:
            return i
        else:
            return gcd(i, j % i)
    
def main():
    for line in sys.stdin:
        ls = list(map(int, line.split(' ')))
        g = gcd(ls[0], ls[1])
        print(g, int(ls[0]*ls[1]/g))

if __name__ == '__main__':
    main()

Python: # Vol0005.


def intinput():
    a = input().split()
    for i in range(len(a)):
        a[i] = int(a[i])
    return a

def get_gcd(x, y):
    if x < y: return get_gcd(y, x)
    # x >= yのときはx % yを計算してyとx % yの話にする。
    # ここでx % yのところが0ならばyが求める答えとなる。
    if y == 0: return x
    return get_gcd(y, x % y)

def main():
    data = []
    lines = sys.stdin.readlines()
    for line in lines:
        data.append(line.split())

    N = len(data)
    for i in range(N):
        a = int(data[i][0]); b = int(data[i][1])
        gcd = get_gcd(a, b)
        lcm = (a // gcd) * b
        print('%d %d' % (a, b))

if __name__ == "__main__":
    main()

Python: import sys
import math

for line in sys.stdin:
    a,b = map(int, line.split())
    gc = math.gcd(a,b)
    print("{0} {1}".format(gc, a*b//gc))

Python: import sys


def euc(n,m):
    if n == m:
        return m
    elif m == 1 or n == 1:
        return 1
    else:
        return euc(min(n,m), max(n,m)-min(n,m))


for line in sys.stdin:
    a,b = [int(i) for i in line.split()]
    print(euc(a,b),int(a*b/euc(a,b)))

Python: import sys
  
for s in sys.stdin:
    g,r=m,n = map(int,s.split())
    while r!=0:
      g,r = r,g%r
    print(g,m//g*n)

Python: import math
while True:
    try:
        a, b = sorted(map(int, input().split()))
    except:
        break
    gcd = math.gcd(a, b)
    lcm = (a*b) // gcd
    print(gcd, lcm)

Python: import sys
a=[map(int,i.split())for i in sys.stdin]
for i,j in a:
	c,d=i,j
	while d:
		if c>d:c,d=d,c
		d%=c
	print(c,i//c*j)

Python: import sys


def g(a, b):
    d = abs(a - b)
    return g(d, a) if a % d != 0 else d


for line in sys.stdin():
    a, b = map(int, line.split())
    c = g(a, b)
    print(c, a * b // gcd)

Python: import sys

def gcd(a, b):
    while b:
        a, b = b, a % b
    return a
    
def lcm(a, b):
    return int(a*b / gcd(a,b))

for s in sys.stdin:
    a, b = map(int, s.split())
    
    print(gcd(a,b), lcm(a,b))

Python: import sys,math
for i in sys.stdin:
	x,y=map(int,i.split())
	g=math.gcd(x,y)
	print(g,x/g*y/g*g)

Python: import sys 
for e in sys.stdin:
    a, b = map(int, e.split())
    p = a * b
    while b:
        a, b = b, a%b
        pass
    print (str(a)+' '+str(p/a))

Python: import math, sys
def lcm(a,b):
    return int(a*b/math.gcd(a,b))

if __name__ == '__main__':
    for line in sys.stdin:
        a,b = map(int,line.split())
        print(int(math.gcd(a,b)),lcm(a,b))

Python: while True:
  try:
    a,b=map(int,input().split())
    if a<b:
      a,b=b,a
    s=b
    r=a%s
    while True:
      if r==0:
        G=s
        break
      else:
        s,r=r,s%r
    L=int((a*b)/G)
    print(G,L)
  except EOFError:
    break

Python: while True:
    try: 
        a, b = map(int, input().split())
        cross = a * b

        if a < b:
            a, b = b, a
        while a % b != 0:
            a, b = b, a % b
        print(b, cross // b)
    except EOFError:
        break

Python: while 1:
    try:
        a = list(map(int, input().split()))
        b=list(a)
        a.sort()
        while a[1]%a[0] != 0:
            a[1] %= a[0]
            a.sort()
        print(a[0], int(b[0]*b[1]/a[0]))
    except:
        break