Q: What are the factor combinations of the number 156,304?

 A:
Positive:   1 x 1563042 x 781524 x 390768 x 1953816 x 9769
Negative: -1 x -156304-2 x -78152-4 x -39076-8 x -19538-16 x -9769


How do I find the factor combinations of the number 156,304?

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 156,304, 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.

1 156,304
-1 -156,304

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 156,304.

Example:
1 x 156,304 = 156,304
and
-1 x -156,304 = 156,304
Notice both answers equal 156,304

With that explanation out of the way, let's continue. Next, we take the number 156,304 and divide it by 2:

156,304 ÷ 2 = 78,152

If the quotient is a whole number, then 2 and 78,152 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 78,152 156,304
-1 -2 -78,152 -156,304

Now, we try dividing 156,304 by 3:

156,304 ÷ 3 = 52,101.3333

If the quotient is a whole number, then 3 and 52,101.3333 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 78,152 156,304
-1 -2 -78,152 -156,304

Let's try dividing by 4:

156,304 ÷ 4 = 39,076

If the quotient is a whole number, then 4 and 39,076 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 39,076 78,152 156,304
-1 -2 -4 -39,076 -78,152 156,304
Keep dividing by the next highest number until you cannot divide anymore.

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

1248169,76919,53839,07678,152156,304
-1-2-4-8-16-9,769-19,538-39,076-78,152-156,304

More Examples

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