A:
Positive:
1 x 1088166177 x 1554523113 x 837050943 x 253061991 x 1195787301 x 361517559 x 1946633913 x 27809
Negative:
-1 x -108816617-7 x -15545231-13 x -8370509-43 x -2530619-91 x -1195787-301 x -361517-559 x -194663-3913 x -27809
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 108,816,617, 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 | 108,816,617 | |
| -1 | -108,816,617 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 108,816,617.
Example:
1 x 108,816,617 = 108,816,617
and
-1 x -108,816,617 = 108,816,617
Notice both answers equal 108,816,617
With that explanation out of the way, let's continue. Next, we take the number 108,816,617 and divide it by 2:
108,816,617 ÷ 2 = 54,408,308.5
If the quotient is a whole number, then 2 and 54,408,308.5 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 | 108,816,617 | |
| -1 | -108,816,617 |
Now, we try dividing 108,816,617 by 3:
108,816,617 ÷ 3 = 36,272,205.6667
If the quotient is a whole number, then 3 and 36,272,205.6667 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 | 108,816,617 | |
| -1 | -108,816,617 |
Let's try dividing by 4:
108,816,617 ÷ 4 = 27,204,154.25
If the quotient is a whole number, then 4 and 27,204,154.25 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 | 108,816,617 | |
| -1 | 108,816,617 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 43 | 91 | 301 | 559 | 3,913 | 27,809 | 194,663 | 361,517 | 1,195,787 | 2,530,619 | 8,370,509 | 15,545,231 | 108,816,617 |
| -1 | -7 | -13 | -43 | -91 | -301 | -559 | -3,913 | -27,809 | -194,663 | -361,517 | -1,195,787 | -2,530,619 | -8,370,509 | -15,545,231 | -108,816,617 |
Here are some more numbers to try:
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