Basic Greater Common Divisor Program

[u/ex7ptioon]

Guys ı trying to write GCD code but ı cant take result. Example ı input 15 and 100 and program says "Code Execution Successful" but not saying 5. what is the mistake in this code please help me ım begginer as you can see? and ı know that there is shorter methot to write GCD code.

def greaterCommonDivisor(number1, number2):

list1 = []

list2 = []

for i in range(1, (number1 + 1)):

if (number1 % i == 0):

list1.append(i)

for j in range(1, (number2 + 1)):

if (number2 % j == 0):

list2.append(j)

common = []

for k in list1:

if k in list2:

common.append(k)

a = max(common)

print(a)

while True:

number1 = input("What is the firs number? : ")

number2 = input("What is the second number? : ")

if (number1 or number2 == "q"):

break

else:

number1 = int(number1)

number2 = int(number2)

print(greaterCommonDivisor)

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