Q: What are the factor combinations of the number 578,707?

 A:
Positive:   1 x 57870753 x 1091961 x 9487179 x 3233
Negative: -1 x -578707-53 x -10919-61 x -9487-179 x -3233


How do I find the factor combinations of the number 578,707?

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 578,707, 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.

1 578,707
-1 -578,707

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 578,707.

Example:
1 x 578,707 = 578,707
and
-1 x -578,707 = 578,707
Notice both answers equal 578,707

With that explanation out of the way, let's continue. Next, we take the number 578,707 and divide it by 2:

578,707 ÷ 2 = 289,353.5

If the quotient is a whole number, then 2 and 289,353.5 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:

1 578,707
-1 -578,707

Now, we try dividing 578,707 by 3:

578,707 ÷ 3 = 192,902.3333

If the quotient is a whole number, then 3 and 192,902.3333 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:

1 578,707
-1 -578,707

Let's try dividing by 4:

578,707 ÷ 4 = 144,676.75

If the quotient is a whole number, then 4 and 144,676.75 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:

1 578,707
-1 578,707
Keep dividing by the next highest number until you cannot divide anymore.

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

153611793,2339,48710,919578,707
-1-53-61-179-3,233-9,487-10,919-578,707

More Examples

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