# How to calculate Least Common Multiple in python

To find the least common multiple (L.C.M.) of two integers in the Python language, use the following formula

**(a*b)/gcd(a,b)**

- Parameters a and b are two integer numeric values.
- The function gcd calculates the greatest common divisor of the two numbers.

The formula calculates the **least common multiple** of the two numbers, i.e. the smallest common multiple of both numbers considered.

**Note**. The gcd () function is located in the **Math** library. Therefore, to use it, you must have imported it into the interpreter or script using the from import or import statement.

## Examples

__Example 1__

The following script calculates the least common multiple (L.C.M.) of the numbers 14 and 6.

from math import gcd

(14*6)/gcd(14,6)

The formula returns as output

42.0

The integer number 42 is the least common multiple of 14 and 6.

__Example 2__

This script calculates the least common multiple (L.C.M.) of 12 and 6.

from math import gcd

(12*6)/gcd(12,6)

The function returns in output

12.0

The integer number 12 is the least common multiple of the numbers 12 and 6.

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