A:
Positive:
1 x 2550557455 x 510111497 x 3643653535 x 7287307211 x 12087951055 x 2417591477 x 1726857385 x 34537
Negative:
-1 x -255055745-5 x -51011149-7 x -36436535-35 x -7287307-211 x -1208795-1055 x -241759-1477 x -172685-7385 x -34537
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 255,055,745, 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 | 255,055,745 | |
| -1 | -255,055,745 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 255,055,745.
Example:
1 x 255,055,745 = 255,055,745
and
-1 x -255,055,745 = 255,055,745
Notice both answers equal 255,055,745
With that explanation out of the way, let's continue. Next, we take the number 255,055,745 and divide it by 2:
255,055,745 ÷ 2 = 127,527,872.5
If the quotient is a whole number, then 2 and 127,527,872.5 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 | 255,055,745 | |
| -1 | -255,055,745 |
Now, we try dividing 255,055,745 by 3:
255,055,745 ÷ 3 = 85,018,581.6667
If the quotient is a whole number, then 3 and 85,018,581.6667 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 | 255,055,745 | |
| -1 | -255,055,745 |
Let's try dividing by 4:
255,055,745 ÷ 4 = 63,763,936.25
If the quotient is a whole number, then 4 and 63,763,936.25 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 | 255,055,745 | |
| -1 | 255,055,745 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 211 | 1,055 | 1,477 | 7,385 | 34,537 | 172,685 | 241,759 | 1,208,795 | 7,287,307 | 36,436,535 | 51,011,149 | 255,055,745 |
| -1 | -5 | -7 | -35 | -211 | -1,055 | -1,477 | -7,385 | -34,537 | -172,685 | -241,759 | -1,208,795 | -7,287,307 | -36,436,535 | -51,011,149 | -255,055,745 |
Here are some more numbers to try:
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