A:
Positive:
1 x 1152170055 x 2304340123 x 5009435115 x 1001887271 x 4251551355 x 850313697 x 311656233 x 18485
Negative:
-1 x -115217005-5 x -23043401-23 x -5009435-115 x -1001887-271 x -425155-1355 x -85031-3697 x -31165-6233 x -18485
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 115,217,005, 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 | 115,217,005 | |
| -1 | -115,217,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 115,217,005.
Example:
1 x 115,217,005 = 115,217,005
and
-1 x -115,217,005 = 115,217,005
Notice both answers equal 115,217,005
With that explanation out of the way, let's continue. Next, we take the number 115,217,005 and divide it by 2:
115,217,005 ÷ 2 = 57,608,502.5
If the quotient is a whole number, then 2 and 57,608,502.5 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 | 115,217,005 | |
| -1 | -115,217,005 |
Now, we try dividing 115,217,005 by 3:
115,217,005 ÷ 3 = 38,405,668.3333
If the quotient is a whole number, then 3 and 38,405,668.3333 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 | 115,217,005 | |
| -1 | -115,217,005 |
Let's try dividing by 4:
115,217,005 ÷ 4 = 28,804,251.25
If the quotient is a whole number, then 4 and 28,804,251.25 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 | 115,217,005 | |
| -1 | 115,217,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 271 | 1,355 | 3,697 | 6,233 | 18,485 | 31,165 | 85,031 | 425,155 | 1,001,887 | 5,009,435 | 23,043,401 | 115,217,005 |
| -1 | -5 | -23 | -115 | -271 | -1,355 | -3,697 | -6,233 | -18,485 | -31,165 | -85,031 | -425,155 | -1,001,887 | -5,009,435 | -23,043,401 | -115,217,005 |
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