Q: What are the factor combinations of the number 908,141?

 A:
Positive:   1 x 90814113 x 69857
Negative: -1 x -908141-13 x -69857


How do I find the factor combinations of the number 908,141?

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 908,141, 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.

1 908,141
-1 -908,141

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 908,141.

Example:
1 x 908,141 = 908,141
and
-1 x -908,141 = 908,141
Notice both answers equal 908,141

With that explanation out of the way, let's continue. Next, we take the number 908,141 and divide it by 2:

908,141 ÷ 2 = 454,070.5

If the quotient is a whole number, then 2 and 454,070.5 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:

1 908,141
-1 -908,141

Now, we try dividing 908,141 by 3:

908,141 ÷ 3 = 302,713.6667

If the quotient is a whole number, then 3 and 302,713.6667 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:

1 908,141
-1 -908,141

Let's try dividing by 4:

908,141 ÷ 4 = 227,035.25

If the quotient is a whole number, then 4 and 227,035.25 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:

1 908,141
-1 908,141
Keep dividing by the next highest number until you cannot divide anymore.

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

11369,857908,141
-1-13-69,857-908,141

More Examples

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