Q: What are the factor combinations of the number 412,885?

 A:
Positive:   1 x 4128855 x 8257711 x 3753555 x 7507
Negative: -1 x -412885-5 x -82577-11 x -37535-55 x -7507


How do I find the factor combinations of the number 412,885?

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 412,885, 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.

1 412,885
-1 -412,885

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 412,885.

Example:
1 x 412,885 = 412,885
and
-1 x -412,885 = 412,885
Notice both answers equal 412,885

With that explanation out of the way, let's continue. Next, we take the number 412,885 and divide it by 2:

412,885 ÷ 2 = 206,442.5

If the quotient is a whole number, then 2 and 206,442.5 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:

1 412,885
-1 -412,885

Now, we try dividing 412,885 by 3:

412,885 ÷ 3 = 137,628.3333

If the quotient is a whole number, then 3 and 137,628.3333 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:

1 412,885
-1 -412,885

Let's try dividing by 4:

412,885 ÷ 4 = 103,221.25

If the quotient is a whole number, then 4 and 103,221.25 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:

1 412,885
-1 412,885
Keep dividing by the next highest number until you cannot divide anymore.

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

1511557,50737,53582,577412,885
-1-5-11-55-7,507-37,535-82,577-412,885

More Examples

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