Q: What are the factor combinations of the number 873,565?

 A:
Positive:   1 x 8735655 x 1747137 x 12479511 x 7941535 x 2495955 x 1588377 x 11345385 x 2269
Negative: -1 x -873565-5 x -174713-7 x -124795-11 x -79415-35 x -24959-55 x -15883-77 x -11345-385 x -2269


How do I find the factor combinations of the number 873,565?

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 873,565, 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.

1 873,565
-1 -873,565

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 873,565.

Example:
1 x 873,565 = 873,565
and
-1 x -873,565 = 873,565
Notice both answers equal 873,565

With that explanation out of the way, let's continue. Next, we take the number 873,565 and divide it by 2:

873,565 ÷ 2 = 436,782.5

If the quotient is a whole number, then 2 and 436,782.5 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:

1 873,565
-1 -873,565

Now, we try dividing 873,565 by 3:

873,565 ÷ 3 = 291,188.3333

If the quotient is a whole number, then 3 and 291,188.3333 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:

1 873,565
-1 -873,565

Let's try dividing by 4:

873,565 ÷ 4 = 218,391.25

If the quotient is a whole number, then 4 and 218,391.25 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:

1 873,565
-1 873,565
Keep dividing by the next highest number until you cannot divide anymore.

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

157113555773852,26911,34515,88324,95979,415124,795174,713873,565
-1-5-7-11-35-55-77-385-2,269-11,345-15,883-24,959-79,415-124,795-174,713-873,565

More Examples

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