Q: What are the factor combinations of the number 413,453,426?

 A:
Positive:   1 x 4134534262 x 2067267131039 x 3979342078 x 198967
Negative: -1 x -413453426-2 x -206726713-1039 x -397934-2078 x -198967


How do I find the factor combinations of the number 413,453,426?

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 413,453,426, 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.

1 413,453,426
-1 -413,453,426

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 413,453,426.

Example:
1 x 413,453,426 = 413,453,426
and
-1 x -413,453,426 = 413,453,426
Notice both answers equal 413,453,426

With that explanation out of the way, let's continue. Next, we take the number 413,453,426 and divide it by 2:

413,453,426 ÷ 2 = 206,726,713

If the quotient is a whole number, then 2 and 206,726,713 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 2 206,726,713 413,453,426
-1 -2 -206,726,713 -413,453,426

Now, we try dividing 413,453,426 by 3:

413,453,426 ÷ 3 = 137,817,808.6667

If the quotient is a whole number, then 3 and 137,817,808.6667 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 2 206,726,713 413,453,426
-1 -2 -206,726,713 -413,453,426

Let's try dividing by 4:

413,453,426 ÷ 4 = 103,363,356.5

If the quotient is a whole number, then 4 and 103,363,356.5 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 2 206,726,713 413,453,426
-1 -2 -206,726,713 413,453,426
Keep dividing by the next highest number until you cannot divide anymore.

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

121,0392,078198,967397,934206,726,713413,453,426
-1-2-1,039-2,078-198,967-397,934-206,726,713-413,453,426

More Examples

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