Q: What are the factor combinations of the number 250,494?

 A:
Positive:   1 x 2504942 x 1252473 x 834986 x 4174983 x 3018166 x 1509249 x 1006498 x 503
Negative: -1 x -250494-2 x -125247-3 x -83498-6 x -41749-83 x -3018-166 x -1509-249 x -1006-498 x -503


How do I find the factor combinations of the number 250,494?

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 250,494, 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.

1 250,494
-1 -250,494

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 250,494.

Example:
1 x 250,494 = 250,494
and
-1 x -250,494 = 250,494
Notice both answers equal 250,494

With that explanation out of the way, let's continue. Next, we take the number 250,494 and divide it by 2:

250,494 ÷ 2 = 125,247

If the quotient is a whole number, then 2 and 125,247 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 125,247 250,494
-1 -2 -125,247 -250,494

Now, we try dividing 250,494 by 3:

250,494 ÷ 3 = 83,498

If the quotient is a whole number, then 3 and 83,498 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 3 83,498 125,247 250,494
-1 -2 -3 -83,498 -125,247 -250,494

Let's try dividing by 4:

250,494 ÷ 4 = 62,623.5

If the quotient is a whole number, then 4 and 62,623.5 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 2 3 83,498 125,247 250,494
-1 -2 -3 -83,498 -125,247 250,494
Keep dividing by the next highest number until you cannot divide anymore.

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

1236831662494985031,0061,5093,01841,74983,498125,247250,494
-1-2-3-6-83-166-249-498-503-1,006-1,509-3,018-41,749-83,498-125,247-250,494

More Examples

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