Q: What are the factor combinations of the number 43,020,448?

 A:
Positive:   1 x 430204482 x 215102244 x 107551128 x 537755616 x 268877832 x 1344389
Negative: -1 x -43020448-2 x -21510224-4 x -10755112-8 x -5377556-16 x -2688778-32 x -1344389


How do I find the factor combinations of the number 43,020,448?

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 43,020,448, 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 43,020,448
-1 -43,020,448

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 43,020,448.

Example:
1 x 43,020,448 = 43,020,448
and
-1 x -43,020,448 = 43,020,448
Notice both answers equal 43,020,448

With that explanation out of the way, let's continue. Next, we take the number 43,020,448 and divide it by 2:

43,020,448 ÷ 2 = 21,510,224

If the quotient is a whole number, then 2 and 21,510,224 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 21,510,224 43,020,448
-1 -2 -21,510,224 -43,020,448

Now, we try dividing 43,020,448 by 3:

43,020,448 ÷ 3 = 14,340,149.3333

If the quotient is a whole number, then 3 and 14,340,149.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.

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

1 2 21,510,224 43,020,448
-1 -2 -21,510,224 -43,020,448

Let's try dividing by 4:

43,020,448 ÷ 4 = 10,755,112

If the quotient is a whole number, then 4 and 10,755,112 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 4 10,755,112 21,510,224 43,020,448
-1 -2 -4 -10,755,112 -21,510,224 43,020,448
Keep dividing by the next highest number until you cannot divide anymore.

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

124816321,344,3892,688,7785,377,55610,755,11221,510,22443,020,448
-1-2-4-8-16-32-1,344,389-2,688,778-5,377,556-10,755,112-21,510,224-43,020,448

More Examples

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