They really aren't all that similar... Greastest common factor finds the greatest number that you can divide both numbers by... for example, the GCF of 15 and 20 is 5, because 15 / 3 = 5 and 20 / 4 =...
Short answer: There is none. There is not a least common multiple of a single number, such as 4080, because there cannot be any form of common multiple without two or more numbers to compare. Common...