Q: What are the factor combinations of the number 396,695?

 A:
Positive:   1 x 3966955 x 7933913 x 3051517 x 2333565 x 610385 x 4667221 x 1795359 x 1105
Negative: -1 x -396695-5 x -79339-13 x -30515-17 x -23335-65 x -6103-85 x -4667-221 x -1795-359 x -1105


How do I find the factor combinations of the number 396,695?

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 396,695, 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.

1 396,695
-1 -396,695

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 396,695.

Example:
1 x 396,695 = 396,695
and
-1 x -396,695 = 396,695
Notice both answers equal 396,695

With that explanation out of the way, let's continue. Next, we take the number 396,695 and divide it by 2:

396,695 ÷ 2 = 198,347.5

If the quotient is a whole number, then 2 and 198,347.5 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:

1 396,695
-1 -396,695

Now, we try dividing 396,695 by 3:

396,695 ÷ 3 = 132,231.6667

If the quotient is a whole number, then 3 and 132,231.6667 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:

1 396,695
-1 -396,695

Let's try dividing by 4:

396,695 ÷ 4 = 99,173.75

If the quotient is a whole number, then 4 and 99,173.75 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:

1 396,695
-1 396,695
Keep dividing by the next highest number until you cannot divide anymore.

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

15131765852213591,1051,7954,6676,10323,33530,51579,339396,695
-1-5-13-17-65-85-221-359-1,105-1,795-4,667-6,103-23,335-30,515-79,339-396,695

More Examples

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