A:
Positive:
1 x 1248258555 x 249651717 x 1783226511 x 1134780535 x 356645355 x 226956177 x 1621115385 x 324223
Negative:
-1 x -124825855-5 x -24965171-7 x -17832265-11 x -11347805-35 x -3566453-55 x -2269561-77 x -1621115-385 x -324223
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 124,825,855, 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 | 124,825,855 | |
| -1 | -124,825,855 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 124,825,855.
Example:
1 x 124,825,855 = 124,825,855
and
-1 x -124,825,855 = 124,825,855
Notice both answers equal 124,825,855
With that explanation out of the way, let's continue. Next, we take the number 124,825,855 and divide it by 2:
124,825,855 ÷ 2 = 62,412,927.5
If the quotient is a whole number, then 2 and 62,412,927.5 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 | 124,825,855 | |
| -1 | -124,825,855 |
Now, we try dividing 124,825,855 by 3:
124,825,855 ÷ 3 = 41,608,618.3333
If the quotient is a whole number, then 3 and 41,608,618.3333 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 | 124,825,855 | |
| -1 | -124,825,855 |
Let's try dividing by 4:
124,825,855 ÷ 4 = 31,206,463.75
If the quotient is a whole number, then 4 and 31,206,463.75 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 | 124,825,855 | |
| -1 | 124,825,855 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 324,223 | 1,621,115 | 2,269,561 | 3,566,453 | 11,347,805 | 17,832,265 | 24,965,171 | 124,825,855 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -324,223 | -1,621,115 | -2,269,561 | -3,566,453 | -11,347,805 | -17,832,265 | -24,965,171 | -124,825,855 |
Here are some more numbers to try:
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