A:
Positive:
1 x 111553155 x 223106317 x 65619537 x 30149585 x 131239185 x 60299629 x 177353145 x 3547
Negative:
-1 x -11155315-5 x -2231063-17 x -656195-37 x -301495-85 x -131239-185 x -60299-629 x -17735-3145 x -3547
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 11,155,315, 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 | 11,155,315 | |
| -1 | -11,155,315 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,155,315.
Example:
1 x 11,155,315 = 11,155,315
and
-1 x -11,155,315 = 11,155,315
Notice both answers equal 11,155,315
With that explanation out of the way, let's continue. Next, we take the number 11,155,315 and divide it by 2:
11,155,315 ÷ 2 = 5,577,657.5
If the quotient is a whole number, then 2 and 5,577,657.5 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 | 11,155,315 | |
| -1 | -11,155,315 |
Now, we try dividing 11,155,315 by 3:
11,155,315 ÷ 3 = 3,718,438.3333
If the quotient is a whole number, then 3 and 3,718,438.3333 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 | 11,155,315 | |
| -1 | -11,155,315 |
Let's try dividing by 4:
11,155,315 ÷ 4 = 2,788,828.75
If the quotient is a whole number, then 4 and 2,788,828.75 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 | 11,155,315 | |
| -1 | 11,155,315 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 37 | 85 | 185 | 629 | 3,145 | 3,547 | 17,735 | 60,299 | 131,239 | 301,495 | 656,195 | 2,231,063 | 11,155,315 |
| -1 | -5 | -17 | -37 | -85 | -185 | -629 | -3,145 | -3,547 | -17,735 | -60,299 | -131,239 | -301,495 | -656,195 | -2,231,063 | -11,155,315 |
Here are some more numbers to try:
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