A:
Positive:
1 x 2545715755 x 5091431525 x 1018286379 x 3222425157 x 1621475395 x 644485785 x 324295821 x 3100751975 x 1288973925 x 648594105 x 6201512403 x 20525
Negative:
-1 x -254571575-5 x -50914315-25 x -10182863-79 x -3222425-157 x -1621475-395 x -644485-785 x -324295-821 x -310075-1975 x -128897-3925 x -64859-4105 x -62015-12403 x -20525
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 254,571,575, 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 | 254,571,575 | |
| -1 | -254,571,575 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 254,571,575.
Example:
1 x 254,571,575 = 254,571,575
and
-1 x -254,571,575 = 254,571,575
Notice both answers equal 254,571,575
With that explanation out of the way, let's continue. Next, we take the number 254,571,575 and divide it by 2:
254,571,575 ÷ 2 = 127,285,787.5
If the quotient is a whole number, then 2 and 127,285,787.5 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 | 254,571,575 | |
| -1 | -254,571,575 |
Now, we try dividing 254,571,575 by 3:
254,571,575 ÷ 3 = 84,857,191.6667
If the quotient is a whole number, then 3 and 84,857,191.6667 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 | 254,571,575 | |
| -1 | -254,571,575 |
Let's try dividing by 4:
254,571,575 ÷ 4 = 63,642,893.75
If the quotient is a whole number, then 4 and 63,642,893.75 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 | 254,571,575 | |
| -1 | 254,571,575 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 79 | 157 | 395 | 785 | 821 | 1,975 | 3,925 | 4,105 | 12,403 | 20,525 | 62,015 | 64,859 | 128,897 | 310,075 | 324,295 | 644,485 | 1,621,475 | 3,222,425 | 10,182,863 | 50,914,315 | 254,571,575 |
| -1 | -5 | -25 | -79 | -157 | -395 | -785 | -821 | -1,975 | -3,925 | -4,105 | -12,403 | -20,525 | -62,015 | -64,859 | -128,897 | -310,075 | -324,295 | -644,485 | -1,621,475 | -3,222,425 | -10,182,863 | -50,914,315 | -254,571,575 |
Here are some more numbers to try:
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