Q: What are the factor combinations of the number 545,448?

 A:
Positive:   1 x 5454482 x 2727243 x 1818164 x 1363626 x 909088 x 6818112 x 4545424 x 22727
Negative: -1 x -545448-2 x -272724-3 x -181816-4 x -136362-6 x -90908-8 x -68181-12 x -45454-24 x -22727


How do I find the factor combinations of the number 545,448?

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 545,448, 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.

1 545,448
-1 -545,448

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 545,448.

Example:
1 x 545,448 = 545,448
and
-1 x -545,448 = 545,448
Notice both answers equal 545,448

With that explanation out of the way, let's continue. Next, we take the number 545,448 and divide it by 2:

545,448 ÷ 2 = 272,724

If the quotient is a whole number, then 2 and 272,724 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 2 272,724 545,448
-1 -2 -272,724 -545,448

Now, we try dividing 545,448 by 3:

545,448 ÷ 3 = 181,816

If the quotient is a whole number, then 3 and 181,816 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 3 181,816 272,724 545,448
-1 -2 -3 -181,816 -272,724 -545,448

Let's try dividing by 4:

545,448 ÷ 4 = 136,362

If the quotient is a whole number, then 4 and 136,362 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 4 136,362 181,816 272,724 545,448
-1 -2 -3 -4 -136,362 -181,816 -272,724 545,448
Keep dividing by the next highest number until you cannot divide anymore.

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

123468122422,72745,45468,18190,908136,362181,816272,724545,448
-1-2-3-4-6-8-12-24-22,727-45,454-68,181-90,908-136,362-181,816-272,724-545,448

More Examples

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