输入两个正整数计算最大公约数和最小公倍数

def main():
    x = int(input('x = '))
    y = int(input('y = '))
    if x > y:
        (x, y) = (y, x)
    for factor in range(x, 0, -1):
        if x % factor == 0 and y % factor == 0:
            print('%d和%d的最大公约数是%d' % (x, y, factor))
            print('%d和%d的最小公倍数是%d' % (x, y, x * y // factor))
            break

if __name__ == '__main__':
    main()