A:
Positive:
1 x 2552757555 x 510551517 x 3646796535 x 7293593347 x 7356651735 x 1471332429 x 10509512145 x 21019
Negative:
-1 x -255275755-5 x -51055151-7 x -36467965-35 x -7293593-347 x -735665-1735 x -147133-2429 x -105095-12145 x -21019
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 255,275,755, 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 | 255,275,755 | |
| -1 | -255,275,755 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 255,275,755.
Example:
1 x 255,275,755 = 255,275,755
and
-1 x -255,275,755 = 255,275,755
Notice both answers equal 255,275,755
With that explanation out of the way, let's continue. Next, we take the number 255,275,755 and divide it by 2:
255,275,755 ÷ 2 = 127,637,877.5
If the quotient is a whole number, then 2 and 127,637,877.5 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 | 255,275,755 | |
| -1 | -255,275,755 |
Now, we try dividing 255,275,755 by 3:
255,275,755 ÷ 3 = 85,091,918.3333
If the quotient is a whole number, then 3 and 85,091,918.3333 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 | 255,275,755 | |
| -1 | -255,275,755 |
Let's try dividing by 4:
255,275,755 ÷ 4 = 63,818,938.75
If the quotient is a whole number, then 4 and 63,818,938.75 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 | 255,275,755 | |
| -1 | 255,275,755 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 347 | 1,735 | 2,429 | 12,145 | 21,019 | 105,095 | 147,133 | 735,665 | 7,293,593 | 36,467,965 | 51,055,151 | 255,275,755 |
| -1 | -5 | -7 | -35 | -347 | -1,735 | -2,429 | -12,145 | -21,019 | -105,095 | -147,133 | -735,665 | -7,293,593 | -36,467,965 | -51,055,151 | -255,275,755 |
Here are some more numbers to try:
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