Q: What are the factor combinations of the number 279,943?

 A:
Positive:   1 x 279943271 x 1033
Negative: -1 x -279943-271 x -1033


How do I find the factor combinations of the number 279,943?

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 279,943, 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.

1 279,943
-1 -279,943

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 279,943.

Example:
1 x 279,943 = 279,943
and
-1 x -279,943 = 279,943
Notice both answers equal 279,943

With that explanation out of the way, let's continue. Next, we take the number 279,943 and divide it by 2:

279,943 ÷ 2 = 139,971.5

If the quotient is a whole number, then 2 and 139,971.5 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:

1 279,943
-1 -279,943

Now, we try dividing 279,943 by 3:

279,943 ÷ 3 = 93,314.3333

If the quotient is a whole number, then 3 and 93,314.3333 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:

1 279,943
-1 -279,943

Let's try dividing by 4:

279,943 ÷ 4 = 69,985.75

If the quotient is a whole number, then 4 and 69,985.75 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:

1 279,943
-1 279,943
Keep dividing by the next highest number until you cannot divide anymore.

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

12711,033279,943
-1-271-1,033-279,943

More Examples

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