A:
Positive:
1 x 1154566497 x 1649380711 x 1049605977 x 1499437163 x 7083231141 x 1011891793 x 643939199 x 12551
Negative:
-1 x -115456649-7 x -16493807-11 x -10496059-77 x -1499437-163 x -708323-1141 x -101189-1793 x -64393-9199 x -12551
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 115,456,649, 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 | 115,456,649 | |
| -1 | -115,456,649 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 115,456,649.
Example:
1 x 115,456,649 = 115,456,649
and
-1 x -115,456,649 = 115,456,649
Notice both answers equal 115,456,649
With that explanation out of the way, let's continue. Next, we take the number 115,456,649 and divide it by 2:
115,456,649 ÷ 2 = 57,728,324.5
If the quotient is a whole number, then 2 and 57,728,324.5 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 | 115,456,649 | |
| -1 | -115,456,649 |
Now, we try dividing 115,456,649 by 3:
115,456,649 ÷ 3 = 38,485,549.6667
If the quotient is a whole number, then 3 and 38,485,549.6667 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 | 115,456,649 | |
| -1 | -115,456,649 |
Let's try dividing by 4:
115,456,649 ÷ 4 = 28,864,162.25
If the quotient is a whole number, then 4 and 28,864,162.25 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 | 115,456,649 | |
| -1 | 115,456,649 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 163 | 1,141 | 1,793 | 9,199 | 12,551 | 64,393 | 101,189 | 708,323 | 1,499,437 | 10,496,059 | 16,493,807 | 115,456,649 |
| -1 | -7 | -11 | -77 | -163 | -1,141 | -1,793 | -9,199 | -12,551 | -64,393 | -101,189 | -708,323 | -1,499,437 | -10,496,059 | -16,493,807 | -115,456,649 |
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