Q: What are the factor combinations of the number 811,013?
A:
Positive:
1 x 8110137 x 115859
Negative:
-1 x -811013-7 x -115859
A:
Positive:
1 x 8110137 x 115859
Negative:
-1 x -811013-7 x -115859
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 811,013, it is easier to work with a table - it's called factoring from the outside in.
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 | 811,013 | |
-1 | -811,013 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 811,013.
Example:
1 x 811,013 = 811,013
and
-1 x -811,013 = 811,013
Notice both answers equal 811,013
With that explanation out of the way, let's continue. Next, we take the number 811,013 and divide it by 2:
811,013 ÷ 2 = 405,506.5
If the quotient is a whole number, then 2 and 405,506.5 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 | 811,013 | |
-1 | -811,013 |
Now, we try dividing 811,013 by 3:
811,013 ÷ 3 = 270,337.6667
If the quotient is a whole number, then 3 and 270,337.6667 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 | 811,013 | |
-1 | -811,013 |
Let's try dividing by 4:
811,013 ÷ 4 = 202,753.25
If the quotient is a whole number, then 4 and 202,753.25 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 | 811,013 | |
-1 | 811,013 |
If you did it right, you will end up with this table:
1 | 7 | 115,859 | 811,013 |
-1 | -7 | -115,859 | -811,013 |
Here are some more numbers to try:
Try the factor calculator