Q: What are the factor combinations of the number 394,825?

 A:
Positive:   1 x 3948255 x 7896517 x 2322525 x 1579385 x 4645425 x 929
Negative: -1 x -394825-5 x -78965-17 x -23225-25 x -15793-85 x -4645-425 x -929


How do I find the factor combinations of the number 394,825?

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 394,825, 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.

1 394,825
-1 -394,825

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 394,825.

Example:
1 x 394,825 = 394,825
and
-1 x -394,825 = 394,825
Notice both answers equal 394,825

With that explanation out of the way, let's continue. Next, we take the number 394,825 and divide it by 2:

394,825 ÷ 2 = 197,412.5

If the quotient is a whole number, then 2 and 197,412.5 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:

1 394,825
-1 -394,825

Now, we try dividing 394,825 by 3:

394,825 ÷ 3 = 131,608.3333

If the quotient is a whole number, then 3 and 131,608.3333 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:

1 394,825
-1 -394,825

Let's try dividing by 4:

394,825 ÷ 4 = 98,706.25

If the quotient is a whole number, then 4 and 98,706.25 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:

1 394,825
-1 394,825
Keep dividing by the next highest number until you cannot divide anymore.

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

151725854259294,64515,79323,22578,965394,825
-1-5-17-25-85-425-929-4,645-15,793-23,225-78,965-394,825

More Examples

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