Q: What are the factor combinations of the number 70,212?

 A:
Positive:   1 x 702122 x 351063 x 234044 x 175536 x 1170212 x 5851
Negative: -1 x -70212-2 x -35106-3 x -23404-4 x -17553-6 x -11702-12 x -5851


How do I find the factor combinations of the number 70,212?

Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 70,212, it is easier to work with a table - it's called factoring from the outside in.

Outside in Factoring

We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.

1 70,212
-1 -70,212

Why are the negative numbers included?

When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 70,212.

Example:
1 x 70,212 = 70,212
and
-1 x -70,212 = 70,212
Notice both answers equal 70,212

With that explanation out of the way, let's continue. Next, we take the number 70,212 and divide it by 2:

70,212 ÷ 2 = 35,106

If the quotient is a whole number, then 2 and 35,106 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 35,106 70,212
-1 -2 -35,106 -70,212

Now, we try dividing 70,212 by 3:

70,212 ÷ 3 = 23,404

If the quotient is a whole number, then 3 and 23,404 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 3 23,404 35,106 70,212
-1 -2 -3 -23,404 -35,106 -70,212

Let's try dividing by 4:

70,212 ÷ 4 = 17,553

If the quotient is a whole number, then 4 and 17,553 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 3 4 17,553 23,404 35,106 70,212
-1 -2 -3 -4 -17,553 -23,404 -35,106 70,212
Keep dividing by the next highest number until you cannot divide anymore.

If you did it right, you will end up with this table:

12346125,85111,70217,55323,40435,10670,212
-1-2-3-4-6-12-5,851-11,702-17,553-23,404-35,106-70,212

More Examples

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