Q: What are the factor combinations of the number 108,766,015?

 A:
Positive:   1 x 1087660155 x 2175320379 x 1376785395 x 275357
Negative: -1 x -108766015-5 x -21753203-79 x -1376785-395 x -275357


How do I find the factor combinations of the number 108,766,015?

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 108,766,015, 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.

1 108,766,015
-1 -108,766,015

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 108,766,015.

Example:
1 x 108,766,015 = 108,766,015
and
-1 x -108,766,015 = 108,766,015
Notice both answers equal 108,766,015

With that explanation out of the way, let's continue. Next, we take the number 108,766,015 and divide it by 2:

108,766,015 ÷ 2 = 54,383,007.5

If the quotient is a whole number, then 2 and 54,383,007.5 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:

1 108,766,015
-1 -108,766,015

Now, we try dividing 108,766,015 by 3:

108,766,015 ÷ 3 = 36,255,338.3333

If the quotient is a whole number, then 3 and 36,255,338.3333 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:

1 108,766,015
-1 -108,766,015

Let's try dividing by 4:

108,766,015 ÷ 4 = 27,191,503.75

If the quotient is a whole number, then 4 and 27,191,503.75 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:

1 108,766,015
-1 108,766,015
Keep dividing by the next highest number until you cannot divide anymore.

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

1579395275,3571,376,78521,753,203108,766,015
-1-5-79-395-275,357-1,376,785-21,753,203-108,766,015

More Examples

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