Q: What are the factor combinations of the number 373,921?

 A:
Positive:   1 x 373921199 x 1879
Negative: -1 x -373921-199 x -1879


How do I find the factor combinations of the number 373,921?

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 373,921, 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.

1 373,921
-1 -373,921

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 373,921.

Example:
1 x 373,921 = 373,921
and
-1 x -373,921 = 373,921
Notice both answers equal 373,921

With that explanation out of the way, let's continue. Next, we take the number 373,921 and divide it by 2:

373,921 ÷ 2 = 186,960.5

If the quotient is a whole number, then 2 and 186,960.5 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:

1 373,921
-1 -373,921

Now, we try dividing 373,921 by 3:

373,921 ÷ 3 = 124,640.3333

If the quotient is a whole number, then 3 and 124,640.3333 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:

1 373,921
-1 -373,921

Let's try dividing by 4:

373,921 ÷ 4 = 93,480.25

If the quotient is a whole number, then 4 and 93,480.25 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:

1 373,921
-1 373,921
Keep dividing by the next highest number until you cannot divide anymore.

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

11991,879373,921
-1-199-1,879-373,921

More Examples

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