Q: What are the factor combinations of the number 84,235?

 A:
Positive:   1 x 842355 x 1684717 x 495585 x 991
Negative: -1 x -84235-5 x -16847-17 x -4955-85 x -991


How do I find the factor combinations of the number 84,235?

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 84,235, 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 84,235
-1 -84,235

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 84,235.

Example:
1 x 84,235 = 84,235
and
-1 x -84,235 = 84,235
Notice both answers equal 84,235

With that explanation out of the way, let's continue. Next, we take the number 84,235 and divide it by 2:

84,235 ÷ 2 = 42,117.5

If the quotient is a whole number, then 2 and 42,117.5 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 84,235
-1 -84,235

Now, we try dividing 84,235 by 3:

84,235 ÷ 3 = 28,078.3333

If the quotient is a whole number, then 3 and 28,078.3333 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 84,235
-1 -84,235

Let's try dividing by 4:

84,235 ÷ 4 = 21,058.75

If the quotient is a whole number, then 4 and 21,058.75 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 84,235
-1 84,235
Keep dividing by the next highest number until you cannot divide anymore.

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

1517859914,95516,84784,235
-1-5-17-85-991-4,955-16,847-84,235

More Examples

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