Q: What are the factor combinations of the number 902,317?

 A:
Positive:   1 x 90231713 x 6940931 x 29107403 x 2239
Negative: -1 x -902317-13 x -69409-31 x -29107-403 x -2239


How do I find the factor combinations of the number 902,317?

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 902,317, 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.

1 902,317
-1 -902,317

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 902,317.

Example:
1 x 902,317 = 902,317
and
-1 x -902,317 = 902,317
Notice both answers equal 902,317

With that explanation out of the way, let's continue. Next, we take the number 902,317 and divide it by 2:

902,317 ÷ 2 = 451,158.5

If the quotient is a whole number, then 2 and 451,158.5 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:

1 902,317
-1 -902,317

Now, we try dividing 902,317 by 3:

902,317 ÷ 3 = 300,772.3333

If the quotient is a whole number, then 3 and 300,772.3333 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:

1 902,317
-1 -902,317

Let's try dividing by 4:

902,317 ÷ 4 = 225,579.25

If the quotient is a whole number, then 4 and 225,579.25 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:

1 902,317
-1 902,317
Keep dividing by the next highest number until you cannot divide anymore.

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

113314032,23929,10769,409902,317
-1-13-31-403-2,239-29,107-69,409-902,317

More Examples

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