What is the lcm of 6 and 7?

The least common multiple (LCM) of two numbers is the smallest multiple that is divisible by both numbers.

To find the LCM of 6 and 7, we can list out the multiples of each number and find the smallest number that is common to both lists.

Multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, ...

Multiples of 7: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, ...

From the lists above, it is clear that the LCM of 6 and 7 is 42.

Therefore, the LCM of 6 and 7 is 42.