Finding Factors of a Number

U02_L1_T3_we2 Finding Factors of a Number

Hi so we need to

Find all the factors of 120

Or another way to think about it, find all of the whole

Numbers that 120 is divisible by.

So the first one, that's maybe obvious

All whole numbers are divisible by 1

So we could write 120 is equal to is to 1 times 20

So let's write a factors list over here

So this is going to be our factors list over here.

So we just found two factors

We said, well, is it divisible by 1

Well, every whole number is divisible by 1

This is a whole number, so one is a factor at the low end.

1 is a factor.

That's its actual smallest factor, and its

Largest factor is 120

You can't have something larger than 120 dividing

Evenly into 120

121 will not go into 120

So the largest factor on our factors list

Is going to be 120

Now let's think about others.

Let's think about whether is 2 divisible into 120