Q: What are the factor combinations of the number 8,342,009?

 A:
Positive:   1 x 834200913 x 641693169 x 493612197 x 3797
Negative: -1 x -8342009-13 x -641693-169 x -49361-2197 x -3797


How do I find the factor combinations of the number 8,342,009?

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 8,342,009, 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 8,342,009
-1 -8,342,009

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 8,342,009.

Example:
1 x 8,342,009 = 8,342,009
and
-1 x -8,342,009 = 8,342,009
Notice both answers equal 8,342,009

With that explanation out of the way, let's continue. Next, we take the number 8,342,009 and divide it by 2:

8,342,009 ÷ 2 = 4,171,004.5

If the quotient is a whole number, then 2 and 4,171,004.5 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 8,342,009
-1 -8,342,009

Now, we try dividing 8,342,009 by 3:

8,342,009 ÷ 3 = 2,780,669.6667

If the quotient is a whole number, then 3 and 2,780,669.6667 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 8,342,009
-1 -8,342,009

Let's try dividing by 4:

8,342,009 ÷ 4 = 2,085,502.25

If the quotient is a whole number, then 4 and 2,085,502.25 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 8,342,009
-1 8,342,009
Keep dividing by the next highest number until you cannot divide anymore.

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

1131692,1973,79749,361641,6938,342,009
-1-13-169-2,197-3,797-49,361-641,693-8,342,009

More Examples

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