### Home > CC1 > Chapter 6 > Lesson 6.2.3 > Problem 6-100

Recall that a factor of a number divides the original number and leaves no remainder. For example, 4 and 6 are factors of 12. Homework Help ✎

Find all factors of 24.

Find the smallest number that has 1, 2, 3, 4, and 5 as factors. What is the special name for this number?

Find the second smallest number that has 1, 2, 3, 4, and 5 as factors.

Remember that factors go together.

For example, if 12 goes into 24 exactly twice, then 2 must go into 24 exactly 12 times.

This might help you go faster.

Because 5 is a factor, we know that it has to be a multiple of 5.

Because 2 is also a factor, we know that the number has to be a multiple of 10.

Because 3 is also a factor, we know that the number has to be a multiple of 30.

What is the first multiple of 30 that is divisible by 4?

After reading the hint to part (b), answer the following question: What is the second multiple of 30 that is divisible by 4?