A:
Positive:
1 x 115093555 x 230187111 x 104630513 x 88533555 x 20926165 x 177067143 x 80485715 x 16097
Negative:
-1 x -11509355-5 x -2301871-11 x -1046305-13 x -885335-55 x -209261-65 x -177067-143 x -80485-715 x -16097
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 11,509,355, 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 | 11,509,355 | |
| -1 | -11,509,355 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,509,355.
Example:
1 x 11,509,355 = 11,509,355
and
-1 x -11,509,355 = 11,509,355
Notice both answers equal 11,509,355
With that explanation out of the way, let's continue. Next, we take the number 11,509,355 and divide it by 2:
11,509,355 ÷ 2 = 5,754,677.5
If the quotient is a whole number, then 2 and 5,754,677.5 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 | 11,509,355 | |
| -1 | -11,509,355 |
Now, we try dividing 11,509,355 by 3:
11,509,355 ÷ 3 = 3,836,451.6667
If the quotient is a whole number, then 3 and 3,836,451.6667 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 | 11,509,355 | |
| -1 | -11,509,355 |
Let's try dividing by 4:
11,509,355 ÷ 4 = 2,877,338.75
If the quotient is a whole number, then 4 and 2,877,338.75 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 | 11,509,355 | |
| -1 | 11,509,355 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 13 | 55 | 65 | 143 | 715 | 16,097 | 80,485 | 177,067 | 209,261 | 885,335 | 1,046,305 | 2,301,871 | 11,509,355 |
| -1 | -5 | -11 | -13 | -55 | -65 | -143 | -715 | -16,097 | -80,485 | -177,067 | -209,261 | -885,335 | -1,046,305 | -2,301,871 | -11,509,355 |
Here are some more numbers to try:
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