40
6 and 12 have a least common multiple of 12
7, 15 15, 35
That would depend entirely on the given number.
The least common factor of 5 and 12 is the smallest number which divides both of them and it is 1, as it is for all pairs of numbers.(It is also the highest common factor of 5 and 12, as 5 and 12 only have one common factor: 1.)The least, or lowest, common multiple of a pair of numbers is the smallest number which is a multiple of both of them, which for 5 and 12 is 60.
idkj :D
3, 10
There are many common multiples of 120 and 149. A common multiple is simply a multiple of both numbers. The least common multiple is 120x149, since 149 is prime. (Note: this trick doesn't work on all pairs of number. Although the product is always a multiple, it's not the least common multiple.)
4 and 9 12 and 18
4 and 9 12 and 17
9 and 12 12 and 18
15,4 10,60
18 and 36 12 and 36