Q: What are the factor combinations of the number 867,889?

 A:
Positive:   1 x 86788911 x 78899257 x 3377307 x 2827
Negative: -1 x -867889-11 x -78899-257 x -3377-307 x -2827


How do I find the factor combinations of the number 867,889?

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 867,889, 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.

1 867,889
-1 -867,889

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 867,889.

Example:
1 x 867,889 = 867,889
and
-1 x -867,889 = 867,889
Notice both answers equal 867,889

With that explanation out of the way, let's continue. Next, we take the number 867,889 and divide it by 2:

867,889 ÷ 2 = 433,944.5

If the quotient is a whole number, then 2 and 433,944.5 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:

1 867,889
-1 -867,889

Now, we try dividing 867,889 by 3:

867,889 ÷ 3 = 289,296.3333

If the quotient is a whole number, then 3 and 289,296.3333 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:

1 867,889
-1 -867,889

Let's try dividing by 4:

867,889 ÷ 4 = 216,972.25

If the quotient is a whole number, then 4 and 216,972.25 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:

1 867,889
-1 867,889
Keep dividing by the next highest number until you cannot divide anymore.

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

1112573072,8273,37778,899867,889
-1-11-257-307-2,827-3,377-78,899-867,889

More Examples

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