No common factor so the product, 621
135 is the lowest common denominator of numbers 27 and 45.
Since there are no common prime factors of 7 and 27, you must multiply them together to get the common denominator. 27 times 7 is 189.
3
The greatest common denominator of any set of denominators is infinite.
Their product.
It is: 115
945 is the lowest common denominator. 3 is the greatest common factor.
Since 8 is 23 and 81 is 34, the least common denominator is 23 x 34 = 648.
A common denominator is what you get when two different numbers (when you divide or multiply them) have a number in common. This always requires 2 numbers to have something to compare. 27 has the following denominators (by itself): 1, 3 (3*9=27), 9 (3*9=27) So it has a common denominator with at least any other number which is divisible by 1 (which would then be the "lowest common denominator"), 3 and 9.
The lowest common denominator of any set of whole numbers is 1
54
54