A:
Positive:
1 x 4130406055 x 82608121383 x 10784351915 x 215687
Negative:
-1 x -413040605-5 x -82608121-383 x -1078435-1915 x -215687
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 413,040,605, 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 | 413,040,605 | |
| -1 | -413,040,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 413,040,605.
Example:
1 x 413,040,605 = 413,040,605
and
-1 x -413,040,605 = 413,040,605
Notice both answers equal 413,040,605
With that explanation out of the way, let's continue. Next, we take the number 413,040,605 and divide it by 2:
413,040,605 ÷ 2 = 206,520,302.5
If the quotient is a whole number, then 2 and 206,520,302.5 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 | 413,040,605 | |
| -1 | -413,040,605 |
Now, we try dividing 413,040,605 by 3:
413,040,605 ÷ 3 = 137,680,201.6667
If the quotient is a whole number, then 3 and 137,680,201.6667 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 | 413,040,605 | |
| -1 | -413,040,605 |
Let's try dividing by 4:
413,040,605 ÷ 4 = 103,260,151.25
If the quotient is a whole number, then 4 and 103,260,151.25 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 | 413,040,605 | |
| -1 | 413,040,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 383 | 1,915 | 215,687 | 1,078,435 | 82,608,121 | 413,040,605 |
| -1 | -5 | -383 | -1,915 | -215,687 | -1,078,435 | -82,608,121 | -413,040,605 |
Here are some more numbers to try:
Try the factor calculator