Q: What are the factor combinations of the number 977,875?

 A:
Positive:   1 x 9778755 x 19557525 x 39115125 x 7823
Negative: -1 x -977875-5 x -195575-25 x -39115-125 x -7823


How do I find the factor combinations of the number 977,875?

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 977,875, 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.

1 977,875
-1 -977,875

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 977,875.

Example:
1 x 977,875 = 977,875
and
-1 x -977,875 = 977,875
Notice both answers equal 977,875

With that explanation out of the way, let's continue. Next, we take the number 977,875 and divide it by 2:

977,875 ÷ 2 = 488,937.5

If the quotient is a whole number, then 2 and 488,937.5 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:

1 977,875
-1 -977,875

Now, we try dividing 977,875 by 3:

977,875 ÷ 3 = 325,958.3333

If the quotient is a whole number, then 3 and 325,958.3333 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:

1 977,875
-1 -977,875

Let's try dividing by 4:

977,875 ÷ 4 = 244,468.75

If the quotient is a whole number, then 4 and 244,468.75 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:

1 977,875
-1 977,875
Keep dividing by the next highest number until you cannot divide anymore.

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

15251257,82339,115195,575977,875
-1-5-25-125-7,823-39,115-195,575-977,875

More Examples

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