A:
Positive:
1 x 10852186317 x 638363919 x 5711677269 x 403427323 x 3359811249 x 868874573 x 237315111 x 21233
Negative:
-1 x -108521863-17 x -6383639-19 x -5711677-269 x -403427-323 x -335981-1249 x -86887-4573 x -23731-5111 x -21233
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 108,521,863, 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 | 108,521,863 | |
| -1 | -108,521,863 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 108,521,863.
Example:
1 x 108,521,863 = 108,521,863
and
-1 x -108,521,863 = 108,521,863
Notice both answers equal 108,521,863
With that explanation out of the way, let's continue. Next, we take the number 108,521,863 and divide it by 2:
108,521,863 ÷ 2 = 54,260,931.5
If the quotient is a whole number, then 2 and 54,260,931.5 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 | 108,521,863 | |
| -1 | -108,521,863 |
Now, we try dividing 108,521,863 by 3:
108,521,863 ÷ 3 = 36,173,954.3333
If the quotient is a whole number, then 3 and 36,173,954.3333 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 | 108,521,863 | |
| -1 | -108,521,863 |
Let's try dividing by 4:
108,521,863 ÷ 4 = 27,130,465.75
If the quotient is a whole number, then 4 and 27,130,465.75 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 | 108,521,863 | |
| -1 | 108,521,863 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 269 | 323 | 1,249 | 4,573 | 5,111 | 21,233 | 23,731 | 86,887 | 335,981 | 403,427 | 5,711,677 | 6,383,639 | 108,521,863 |
| -1 | -17 | -19 | -269 | -323 | -1,249 | -4,573 | -5,111 | -21,233 | -23,731 | -86,887 | -335,981 | -403,427 | -5,711,677 | -6,383,639 | -108,521,863 |
Here are some more numbers to try:
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