A:
Positive:
1 x 1159082055 x 231816417 x 1655831535 x 33116631433 x 808852311 x 501557165 x 1617710031 x 11555
Negative:
-1 x -115908205-5 x -23181641-7 x -16558315-35 x -3311663-1433 x -80885-2311 x -50155-7165 x -16177-10031 x -11555
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 115,908,205, 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 | 115,908,205 | |
| -1 | -115,908,205 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 115,908,205.
Example:
1 x 115,908,205 = 115,908,205
and
-1 x -115,908,205 = 115,908,205
Notice both answers equal 115,908,205
With that explanation out of the way, let's continue. Next, we take the number 115,908,205 and divide it by 2:
115,908,205 ÷ 2 = 57,954,102.5
If the quotient is a whole number, then 2 and 57,954,102.5 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 | 115,908,205 | |
| -1 | -115,908,205 |
Now, we try dividing 115,908,205 by 3:
115,908,205 ÷ 3 = 38,636,068.3333
If the quotient is a whole number, then 3 and 38,636,068.3333 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 | 115,908,205 | |
| -1 | -115,908,205 |
Let's try dividing by 4:
115,908,205 ÷ 4 = 28,977,051.25
If the quotient is a whole number, then 4 and 28,977,051.25 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 | 115,908,205 | |
| -1 | 115,908,205 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 1,433 | 2,311 | 7,165 | 10,031 | 11,555 | 16,177 | 50,155 | 80,885 | 3,311,663 | 16,558,315 | 23,181,641 | 115,908,205 |
| -1 | -5 | -7 | -35 | -1,433 | -2,311 | -7,165 | -10,031 | -11,555 | -16,177 | -50,155 | -80,885 | -3,311,663 | -16,558,315 | -23,181,641 | -115,908,205 |
Here are some more numbers to try:
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