You need at least two numbers to find an LCM.
The least common multiples of 7 and 14 are 14,28 and 42>
The Least Common Multiple (LCM) for 7 14 is 14.
6
35
35
140
The least common multiple of the numbers 7 and 11 is 77.
The least common multiple of the numbers 12, 5 and 7 is 420.
The LCM is: 693
315
It is: 42
The Least Common Multiple (LCM) of (3,7) is 21.