Solution Exercise 66: the least common multiple of two integers in python

Exercise 66

Write a function in Python which takes as argument a tuple (a, b) composed of two integers and returns it the least common multiple LCM of a and b without using any predefined function in python.

Solution

def leastCommonMult(a,b):
    # take m = a as initial value
    m = a
    
    # while m is not common multiple
    while (m%a != 0 or m%b !=0):
        # we incremente m
        m = m + 1
    return m

# testing function
print("The least common multiple of 6 and 9  is m = ",leastCommonMult(6 , 9))
#The out put is: The least common multiple of 6 and 9  is m =  18