A:
Positive:
1 x 5811611355 x 116232227181 x 3210835541 x 1074235905 x 6421671187 x 4896052705 x 2148475935 x 97921
Negative:
-1 x -581161135-5 x -116232227-181 x -3210835-541 x -1074235-905 x -642167-1187 x -489605-2705 x -214847-5935 x -97921
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 581,161,135, 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 | 581,161,135 | |
| -1 | -581,161,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 581,161,135.
Example:
1 x 581,161,135 = 581,161,135
and
-1 x -581,161,135 = 581,161,135
Notice both answers equal 581,161,135
With that explanation out of the way, let's continue. Next, we take the number 581,161,135 and divide it by 2:
581,161,135 ÷ 2 = 290,580,567.5
If the quotient is a whole number, then 2 and 290,580,567.5 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 | 581,161,135 | |
| -1 | -581,161,135 |
Now, we try dividing 581,161,135 by 3:
581,161,135 ÷ 3 = 193,720,378.3333
If the quotient is a whole number, then 3 and 193,720,378.3333 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 | 581,161,135 | |
| -1 | -581,161,135 |
Let's try dividing by 4:
581,161,135 ÷ 4 = 145,290,283.75
If the quotient is a whole number, then 4 and 145,290,283.75 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 | 581,161,135 | |
| -1 | 581,161,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 181 | 541 | 905 | 1,187 | 2,705 | 5,935 | 97,921 | 214,847 | 489,605 | 642,167 | 1,074,235 | 3,210,835 | 116,232,227 | 581,161,135 |
| -1 | -5 | -181 | -541 | -905 | -1,187 | -2,705 | -5,935 | -97,921 | -214,847 | -489,605 | -642,167 | -1,074,235 | -3,210,835 | -116,232,227 | -581,161,135 |
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