A:
Positive:
1 x 2556072617 x 3651532313 x 1966209791 x 2808871169 x 1512469433 x 590317499 x 5122391183 x 2160673031 x 843313493 x 731775629 x 454096487 x 39403
Negative:
-1 x -255607261-7 x -36515323-13 x -19662097-91 x -2808871-169 x -1512469-433 x -590317-499 x -512239-1183 x -216067-3031 x -84331-3493 x -73177-5629 x -45409-6487 x -39403
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 255,607,261, 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 | 255,607,261 | |
| -1 | -255,607,261 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 255,607,261.
Example:
1 x 255,607,261 = 255,607,261
and
-1 x -255,607,261 = 255,607,261
Notice both answers equal 255,607,261
With that explanation out of the way, let's continue. Next, we take the number 255,607,261 and divide it by 2:
255,607,261 ÷ 2 = 127,803,630.5
If the quotient is a whole number, then 2 and 127,803,630.5 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 | 255,607,261 | |
| -1 | -255,607,261 |
Now, we try dividing 255,607,261 by 3:
255,607,261 ÷ 3 = 85,202,420.3333
If the quotient is a whole number, then 3 and 85,202,420.3333 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 | 255,607,261 | |
| -1 | -255,607,261 |
Let's try dividing by 4:
255,607,261 ÷ 4 = 63,901,815.25
If the quotient is a whole number, then 4 and 63,901,815.25 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 | 255,607,261 | |
| -1 | 255,607,261 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 169 | 433 | 499 | 1,183 | 3,031 | 3,493 | 5,629 | 6,487 | 39,403 | 45,409 | 73,177 | 84,331 | 216,067 | 512,239 | 590,317 | 1,512,469 | 2,808,871 | 19,662,097 | 36,515,323 | 255,607,261 |
| -1 | -7 | -13 | -91 | -169 | -433 | -499 | -1,183 | -3,031 | -3,493 | -5,629 | -6,487 | -39,403 | -45,409 | -73,177 | -84,331 | -216,067 | -512,239 | -590,317 | -1,512,469 | -2,808,871 | -19,662,097 | -36,515,323 | -255,607,261 |
Here are some more numbers to try:
Try the factor calculator