Q: What are the factor combinations of the number 427,825?

 A:
Positive:   1 x 4278255 x 8556525 x 17113109 x 3925157 x 2725545 x 785
Negative: -1 x -427825-5 x -85565-25 x -17113-109 x -3925-157 x -2725-545 x -785


How do I find the factor combinations of the number 427,825?

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 427,825, 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.

1 427,825
-1 -427,825

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 427,825.

Example:
1 x 427,825 = 427,825
and
-1 x -427,825 = 427,825
Notice both answers equal 427,825

With that explanation out of the way, let's continue. Next, we take the number 427,825 and divide it by 2:

427,825 ÷ 2 = 213,912.5

If the quotient is a whole number, then 2 and 213,912.5 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:

1 427,825
-1 -427,825

Now, we try dividing 427,825 by 3:

427,825 ÷ 3 = 142,608.3333

If the quotient is a whole number, then 3 and 142,608.3333 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:

1 427,825
-1 -427,825

Let's try dividing by 4:

427,825 ÷ 4 = 106,956.25

If the quotient is a whole number, then 4 and 106,956.25 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:

1 427,825
-1 427,825
Keep dividing by the next highest number until you cannot divide anymore.

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

15251091575457852,7253,92517,11385,565427,825
-1-5-25-109-157-545-785-2,725-3,925-17,113-85,565-427,825

More Examples

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