# What are the factors of 40?

##### 1 Answer

The factors are

#### Explanation:

I find factors in pairs, It will look like more work than it is, because I will explain how I am doing these steps. I do most of the work without writing it down. I'll put the explanation in black in [brackets] and the answer in

I'll proceed by starting with

[I see that 40 is divisible by 2, and do the division to get the next pair]

[Now we check 3. But 40 is

notdivisible by 3. I usually write a number before I check, so if a number is not a factor, I cross it out.]]

[Now we need to check 4. Up above, we got

#40 = 2xx20# since#20 = 2xx10# , we see that#40 = 2xx2xx10 = 4xx10# ]

[The next number to check is 5. We can either divide

#40 -: 5# to get#8# or split up the#10# in the last factor pair:#40 = 4xx10 = 4xx2xx5=8xx5# ]

{Move on to 6. But 40 is

notdivisible by 6. -- 6 is not a factor of 40.

[40 is

notdivisible by 7.]

The next number,

For numbers greater than **less** than the

The factors are