Q: What are the factor combinations of the number 263,359?

 A:
Positive:   1 x 26335919 x 1386183 x 3173167 x 1577
Negative: -1 x -263359-19 x -13861-83 x -3173-167 x -1577


How do I find the factor combinations of the number 263,359?

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 263,359, 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.

1 263,359
-1 -263,359

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 263,359.

Example:
1 x 263,359 = 263,359
and
-1 x -263,359 = 263,359
Notice both answers equal 263,359

With that explanation out of the way, let's continue. Next, we take the number 263,359 and divide it by 2:

263,359 ÷ 2 = 131,679.5

If the quotient is a whole number, then 2 and 131,679.5 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:

1 263,359
-1 -263,359

Now, we try dividing 263,359 by 3:

263,359 ÷ 3 = 87,786.3333

If the quotient is a whole number, then 3 and 87,786.3333 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:

1 263,359
-1 -263,359

Let's try dividing by 4:

263,359 ÷ 4 = 65,839.75

If the quotient is a whole number, then 4 and 65,839.75 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:

1 263,359
-1 263,359
Keep dividing by the next highest number until you cannot divide anymore.

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

119831671,5773,17313,861263,359
-1-19-83-167-1,577-3,173-13,861-263,359

More Examples

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