The Greatest Common Divisor of two numbers is the largest number that will divide into both evenly. For example, although 27 and 81 are both divisible by 3, it wouldn't be the greatest common divisor, because 27 divides into 81 evenly as well: the greatest common divisor of 27 and 81 is 27.
The Greatest Common Divisor is 6
The least common divisor is always the number "1."
the greatest common divisor or factor is 11
The Greatest Common Divisor is 2
The Greatest Common Divisor of 54, 144 is 18.
The greatest common divisor is: 20
The Greatest Common Divisor is 4
The Greatest Common Divisor is 4
The Greatest Common Divisor is 35
The Greatest Common Divisor is 1
The Greatest Common Divisor is 2
The Greatest Common Divisor is 22
The Greatest Common Divisor is 9
The Greatest Common Divisor is 28
The Greatest Common Divisor is 19
2 is the common divisor
The Greatest Common Divisor is 13