what is the least common multiple of 7 and 4?

28?

Yes! :-)

Nope. It's smaller than 64

To find the least common multiple (LCM) of two numbers, you can use the prime factorization method or the list method. Let's use the list method in this case to find the LCM of 7 and 4.

1. Create a list of multiples for each number:
Multiples of 7: 7, 14, 21, 28, 35, 42, ...
Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, ...

2. Look for the smallest number that appears in both lists:
In this case, 28 is the smallest number that appears in both lists.

Therefore, the least common multiple (LCM) of 7 and 4 is 28.

So, the answer is 28.