5 and 13 have no factors because they're prime.
420
Five common factors.
1. That is to say, they have no prime factors in common.
The least common denominator of five sixths and one fourth is: 12.
The least common denominator of three fourths and five sixths is twelve.
It's not.
five
You say Nine and five are fourteen.
Five point zero one three. NOT five point thirteen.
Since 5 is a factor of 15, all of its factors are common.
The Least Common Multiple (LCM) of (20,35) is 140.
The least common multiple of the numbers 9 and 5 is 45.