Q: What are the factor combinations of the number 104,405,231?

 A:
Positive:   1 x 1044052317 x 1491503337 x 282176349 x 2130719259 x 4031091813 x 57587
Negative: -1 x -104405231-7 x -14915033-37 x -2821763-49 x -2130719-259 x -403109-1813 x -57587


How do I find the factor combinations of the number 104,405,231?

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 104,405,231, 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.

1 104,405,231
-1 -104,405,231

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 104,405,231.

Example:
1 x 104,405,231 = 104,405,231
and
-1 x -104,405,231 = 104,405,231
Notice both answers equal 104,405,231

With that explanation out of the way, let's continue. Next, we take the number 104,405,231 and divide it by 2:

104,405,231 ÷ 2 = 52,202,615.5

If the quotient is a whole number, then 2 and 52,202,615.5 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:

1 104,405,231
-1 -104,405,231

Now, we try dividing 104,405,231 by 3:

104,405,231 ÷ 3 = 34,801,743.6667

If the quotient is a whole number, then 3 and 34,801,743.6667 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:

1 104,405,231
-1 -104,405,231

Let's try dividing by 4:

104,405,231 ÷ 4 = 26,101,307.75

If the quotient is a whole number, then 4 and 26,101,307.75 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:

1 104,405,231
-1 104,405,231
Keep dividing by the next highest number until you cannot divide anymore.

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

1737492591,81357,587403,1092,130,7192,821,76314,915,033104,405,231
-1-7-37-49-259-1,813-57,587-403,109-2,130,719-2,821,763-14,915,033-104,405,231

More Examples

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