A:
Positive:
1 x 1131524911 x 102865929 x 39018179 x 143231319 x 35471449 x 25201869 x 130212291 x 4939
Negative:
-1 x -11315249-11 x -1028659-29 x -390181-79 x -143231-319 x -35471-449 x -25201-869 x -13021-2291 x -4939
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 11,315,249, 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 | 11,315,249 | |
| -1 | -11,315,249 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,315,249.
Example:
1 x 11,315,249 = 11,315,249
and
-1 x -11,315,249 = 11,315,249
Notice both answers equal 11,315,249
With that explanation out of the way, let's continue. Next, we take the number 11,315,249 and divide it by 2:
11,315,249 ÷ 2 = 5,657,624.5
If the quotient is a whole number, then 2 and 5,657,624.5 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 | 11,315,249 | |
| -1 | -11,315,249 |
Now, we try dividing 11,315,249 by 3:
11,315,249 ÷ 3 = 3,771,749.6667
If the quotient is a whole number, then 3 and 3,771,749.6667 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 | 11,315,249 | |
| -1 | -11,315,249 |
Let's try dividing by 4:
11,315,249 ÷ 4 = 2,828,812.25
If the quotient is a whole number, then 4 and 2,828,812.25 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 | 11,315,249 | |
| -1 | 11,315,249 |
If you did it right, you will end up with this table:
| 1 | 11 | 29 | 79 | 319 | 449 | 869 | 2,291 | 4,939 | 13,021 | 25,201 | 35,471 | 143,231 | 390,181 | 1,028,659 | 11,315,249 |
| -1 | -11 | -29 | -79 | -319 | -449 | -869 | -2,291 | -4,939 | -13,021 | -25,201 | -35,471 | -143,231 | -390,181 | -1,028,659 | -11,315,249 |
Here are some more numbers to try:
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