Q: What are the factor combinations of the number 81,061?
A:
Positive:
1 x 81061103 x 787
Negative:
-1 x -81061-103 x -787
A:
Positive:
1 x 81061103 x 787
Negative:
-1 x -81061-103 x -787
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 81,061, 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 | 81,061 | |
-1 | -81,061 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 81,061.
Example:
1 x 81,061 = 81,061
and
-1 x -81,061 = 81,061
Notice both answers equal 81,061
With that explanation out of the way, let's continue. Next, we take the number 81,061 and divide it by 2:
81,061 ÷ 2 = 40,530.5
If the quotient is a whole number, then 2 and 40,530.5 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 | 81,061 | |
-1 | -81,061 |
Now, we try dividing 81,061 by 3:
81,061 ÷ 3 = 27,020.3333
If the quotient is a whole number, then 3 and 27,020.3333 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 | 81,061 | |
-1 | -81,061 |
Let's try dividing by 4:
81,061 ÷ 4 = 20,265.25
If the quotient is a whole number, then 4 and 20,265.25 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 | 81,061 | |
-1 | 81,061 |
If you did it right, you will end up with this table:
1 | 103 | 787 | 81,061 |
-1 | -103 | -787 | -81,061 |
Here are some more numbers to try:
Try the factor calculator