The smallest positive integer that is a multiple of both is the least common multiple (LCM) of two integers. The largest positive integer that divides two integers is called the greatest common divisor (GCD). The LCM and the GCD are combined to form the product of the two numbers.

```
a = int(input('Enter First Number '))
b = int(input('Enter Second Number'))
if (a > b):
biggest = a
else:
biggest = b
while(True):
if(biggest % a == 0 and biggest % b == 0):
print('The LCM of',a,'and',b,'is',biggest)
break
biggest += 1
```

Output

Result is 60

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