The lowest common multiple (LCM) is: 306
144
144
36
72
Ninety. 90.
The LCM is: 90
180
360
1 if u meant the greatest common denomenater: 6 if u meant lest common multiple: 36
That's known as the least common multiple, or LCM.
The least common denominator is the least common multiple of the denominators.
The least common multiple of 14 and 27 is 378