A:
Positive:
1 x 2566671355 x 5133342731 x 8279585155 x 1655917163 x 1574645815 x 3149295053 x 5079510159 x 25265
Negative:
-1 x -256667135-5 x -51333427-31 x -8279585-155 x -1655917-163 x -1574645-815 x -314929-5053 x -50795-10159 x -25265
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 256,667,135, 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 | 256,667,135 | |
| -1 | -256,667,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 256,667,135.
Example:
1 x 256,667,135 = 256,667,135
and
-1 x -256,667,135 = 256,667,135
Notice both answers equal 256,667,135
With that explanation out of the way, let's continue. Next, we take the number 256,667,135 and divide it by 2:
256,667,135 ÷ 2 = 128,333,567.5
If the quotient is a whole number, then 2 and 128,333,567.5 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 | 256,667,135 | |
| -1 | -256,667,135 |
Now, we try dividing 256,667,135 by 3:
256,667,135 ÷ 3 = 85,555,711.6667
If the quotient is a whole number, then 3 and 85,555,711.6667 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 | 256,667,135 | |
| -1 | -256,667,135 |
Let's try dividing by 4:
256,667,135 ÷ 4 = 64,166,783.75
If the quotient is a whole number, then 4 and 64,166,783.75 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 | 256,667,135 | |
| -1 | 256,667,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 155 | 163 | 815 | 5,053 | 10,159 | 25,265 | 50,795 | 314,929 | 1,574,645 | 1,655,917 | 8,279,585 | 51,333,427 | 256,667,135 |
| -1 | -5 | -31 | -155 | -163 | -815 | -5,053 | -10,159 | -25,265 | -50,795 | -314,929 | -1,574,645 | -1,655,917 | -8,279,585 | -51,333,427 | -256,667,135 |
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