A:
Positive:
1 x 1090817055 x 21816341179 x 609395307 x 355315397 x 274765895 x 1218791535 x 710631985 x 54953
Negative:
-1 x -109081705-5 x -21816341-179 x -609395-307 x -355315-397 x -274765-895 x -121879-1535 x -71063-1985 x -54953
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 109,081,705, 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 | 109,081,705 | |
| -1 | -109,081,705 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 109,081,705.
Example:
1 x 109,081,705 = 109,081,705
and
-1 x -109,081,705 = 109,081,705
Notice both answers equal 109,081,705
With that explanation out of the way, let's continue. Next, we take the number 109,081,705 and divide it by 2:
109,081,705 ÷ 2 = 54,540,852.5
If the quotient is a whole number, then 2 and 54,540,852.5 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 | 109,081,705 | |
| -1 | -109,081,705 |
Now, we try dividing 109,081,705 by 3:
109,081,705 ÷ 3 = 36,360,568.3333
If the quotient is a whole number, then 3 and 36,360,568.3333 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 | 109,081,705 | |
| -1 | -109,081,705 |
Let's try dividing by 4:
109,081,705 ÷ 4 = 27,270,426.25
If the quotient is a whole number, then 4 and 27,270,426.25 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 | 109,081,705 | |
| -1 | 109,081,705 |
If you did it right, you will end up with this table:
| 1 | 5 | 179 | 307 | 397 | 895 | 1,535 | 1,985 | 54,953 | 71,063 | 121,879 | 274,765 | 355,315 | 609,395 | 21,816,341 | 109,081,705 |
| -1 | -5 | -179 | -307 | -397 | -895 | -1,535 | -1,985 | -54,953 | -71,063 | -121,879 | -274,765 | -355,315 | -609,395 | -21,816,341 | -109,081,705 |
Here are some more numbers to try:
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