20 and 30 4 and 15
4
18 x 10 = 180 60 x 3 = 180 The lowest common multiple of the two numbers is 180.
the lcm for 60 and 72 is 360.
Least Common Multiple (LCM) for 3 60 is 60.
20 and 30 4 and 15
30 and 60 have an LCM of 60.
You need at least two numbers to find an LCM.
LCM is least common multiple of two or more numbers. LCM of 12 and 15 is 60.
5 and 12
20 and 30
This doesn't work. The LCM of a pair of numbers has to be equal to or larger than the largest number of the pair. If one of the numbers is 60, the other is 120. 60 and 120 have a GCF of 60, not an LCM.
(1, 60) and (2, 60) are two possible pairs.
The LCM of 30 and 60 is 60
30 and 60
4
You need at least two numbers to find an LCM. If that's 4 and 15, the LCM is 60.