Q: What are the factor combinations of the number 265,382,825?

 A:
Positive:   1 x 2653828255 x 5307656525 x 10615313631 x 4205753155 x 8411515775 x 16823
Negative: -1 x -265382825-5 x -53076565-25 x -10615313-631 x -420575-3155 x -84115-15775 x -16823


How do I find the factor combinations of the number 265,382,825?

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 265,382,825, 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.

1 265,382,825
-1 -265,382,825

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 265,382,825.

Example:
1 x 265,382,825 = 265,382,825
and
-1 x -265,382,825 = 265,382,825
Notice both answers equal 265,382,825

With that explanation out of the way, let's continue. Next, we take the number 265,382,825 and divide it by 2:

265,382,825 ÷ 2 = 132,691,412.5

If the quotient is a whole number, then 2 and 132,691,412.5 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:

1 265,382,825
-1 -265,382,825

Now, we try dividing 265,382,825 by 3:

265,382,825 ÷ 3 = 88,460,941.6667

If the quotient is a whole number, then 3 and 88,460,941.6667 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:

1 265,382,825
-1 -265,382,825

Let's try dividing by 4:

265,382,825 ÷ 4 = 66,345,706.25

If the quotient is a whole number, then 4 and 66,345,706.25 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:

1 265,382,825
-1 265,382,825
Keep dividing by the next highest number until you cannot divide anymore.

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

15256313,15515,77516,82384,115420,57510,615,31353,076,565265,382,825
-1-5-25-631-3,155-15,775-16,823-84,115-420,575-10,615,313-53,076,565-265,382,825

More Examples

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