ExampleEdit & Run

Use the math.gcd() function

#import the math modules
import math

#The numbers whose gcd we want
nums = (20, 30, 40, 50)

#get the gcd
gcd = math.gcd(*nums)

print(gcd)
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Output:
10[Finished in 0.011578551959246397s]

The math.gcd() function is used to get the greatest common divisor (GCD) of two or more integers. The GCD of given numbers is  the largest positive integer that divides all of the integers without a remainder.

For  example the GCD of 12 and 15 is 3, because 3 is the largest number that can divide both 12 and 15 without a remainder.

Syntax: 
math.gcd(*args)

Where, parameter args represents the arbitrary integer arguments that can be passed to the function. The arguments  should have a minimum of 2 integers.

ExampleEdit & Run
import math

>>> math.gcd(12, 15)
3
>>> math.gcd(10, 20)
10
>>> math.gcd(144, 228)
12
>>> math.gcd(-15, -10, -12)
1
>>> math.gcd(-4, 6, 8, 10)
2
>>> math.gcd(4, 12, 16, 20)
4
>>> math.gcd(50, 100, 150, 200, 250, 300)
50
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The arguments passed to the math.gcd() function should be strictly integers. Otherwise a TypeError is raised.

ExampleEdit & Run
import math
math.gcd(3, 4.0)
 Visualize
Output:
Traceback (most recent call last):  File "<string>", line 2, in <module>TypeError: 'float' object cannot be interpreted as an integer[Finished in 0.011073000961914659s]