It is not possible to give a sensible answer to this question. The least common divisor (LCD) refers to a divisor that is COMMON to two or more numbers. You have only one number in the question!
1 is the least common divisor of any two whole numbers.
The Greatest Common Divisor of 72, 18 is 18.
The least common divisor is always the number "1."
The Greatest Common Divisor of 15, 18 3.
The Greatest Common Divisor of 18, 45 is 9.
The least common divisor of any set of integers is 1.
The Greatest Common Divisor (GCD) for 3 18 is 3
The Greatest Common Divisor (GCD) for 18 20 is 2.
The Greatest Common Divisor of 18, 54 is 18.
The Greatest Common Divisor (GCD) for 18 63 is 9.
The Greatest Common Divisor of 18, 45, 72 is 9.
The Greatest Common Divisor is 2