Program to find simplest whole ratio between 2 integers

def AllFactors(num):
    res = []

    for i in range(1, num):
        if num%i == 0:
            res.append(i)

    res.append(num)

    return res

def CommonFactors(num1, num2):
    temp = AllFactors(Tnum1) + AllFactors(Tnum2)
    res = []

    for i in temp:
        if (temp.count(i) == 2) and (i not in res):
            res.append(i)

    return res

# Main Program
num1 = int(input("Enter 1st Number : "))
num2 = int(input("Enter 2nd Number : "))

Tnum1, Tnum2 = num1, num2

ComFac = CommonFactors(Tnum1, Tnum2)

while ComFac != [1]:
    max_ComFac = max(ComFac)

    Tnum1 //= max_ComFac
    Tnum2 //= max_ComFac

    ComFac = CommonFactors(Tnum1, Tnum2)
else:
    print(f"Simplest Whole Ratio of {num1}:{num2} => {Tnum1}:{Tnum2}")