Q: What are the factor combinations of the number 874,811?

 A:
Positive:   1 x 8748117 x 12497347 x 18613329 x 2659
Negative: -1 x -874811-7 x -124973-47 x -18613-329 x -2659


How do I find the factor combinations of the number 874,811?

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 874,811, 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.

1 874,811
-1 -874,811

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 874,811.

Example:
1 x 874,811 = 874,811
and
-1 x -874,811 = 874,811
Notice both answers equal 874,811

With that explanation out of the way, let's continue. Next, we take the number 874,811 and divide it by 2:

874,811 ÷ 2 = 437,405.5

If the quotient is a whole number, then 2 and 437,405.5 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:

1 874,811
-1 -874,811

Now, we try dividing 874,811 by 3:

874,811 ÷ 3 = 291,603.6667

If the quotient is a whole number, then 3 and 291,603.6667 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:

1 874,811
-1 -874,811

Let's try dividing by 4:

874,811 ÷ 4 = 218,702.75

If the quotient is a whole number, then 4 and 218,702.75 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:

1 874,811
-1 874,811
Keep dividing by the next highest number until you cannot divide anymore.

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

17473292,65918,613124,973874,811
-1-7-47-329-2,659-18,613-124,973-874,811

More Examples

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