Q: What are the factor combinations of the number 27,713,615?

 A:
Positive:   1 x 277136155 x 5542723
Negative: -1 x -27713615-5 x -5542723


How do I find the factor combinations of the number 27,713,615?

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 27,713,615, 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 27,713,615
-1 -27,713,615

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 27,713,615.

Example:
1 x 27,713,615 = 27,713,615
and
-1 x -27,713,615 = 27,713,615
Notice both answers equal 27,713,615

With that explanation out of the way, let's continue. Next, we take the number 27,713,615 and divide it by 2:

27,713,615 ÷ 2 = 13,856,807.5

If the quotient is a whole number, then 2 and 13,856,807.5 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 27,713,615
-1 -27,713,615

Now, we try dividing 27,713,615 by 3:

27,713,615 ÷ 3 = 9,237,871.6667

If the quotient is a whole number, then 3 and 9,237,871.6667 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 27,713,615
-1 -27,713,615

Let's try dividing by 4:

27,713,615 ÷ 4 = 6,928,403.75

If the quotient is a whole number, then 4 and 6,928,403.75 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 27,713,615
-1 27,713,615
Keep dividing by the next highest number until you cannot divide anymore.

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

155,542,72327,713,615
-1-5-5,542,723-27,713,615

More Examples

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