A:
Positive:
1 x 2548367755 x 5096735525 x 1019347129 x 8787475145 x 1757495313 x 814175725 x 3514991123 x 2269251565 x 1628355615 x 453857825 x 325679077 x 28075
Negative:
-1 x -254836775-5 x -50967355-25 x -10193471-29 x -8787475-145 x -1757495-313 x -814175-725 x -351499-1123 x -226925-1565 x -162835-5615 x -45385-7825 x -32567-9077 x -28075
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 254,836,775, 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 | 254,836,775 | |
| -1 | -254,836,775 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 254,836,775.
Example:
1 x 254,836,775 = 254,836,775
and
-1 x -254,836,775 = 254,836,775
Notice both answers equal 254,836,775
With that explanation out of the way, let's continue. Next, we take the number 254,836,775 and divide it by 2:
254,836,775 ÷ 2 = 127,418,387.5
If the quotient is a whole number, then 2 and 127,418,387.5 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 | 254,836,775 | |
| -1 | -254,836,775 |
Now, we try dividing 254,836,775 by 3:
254,836,775 ÷ 3 = 84,945,591.6667
If the quotient is a whole number, then 3 and 84,945,591.6667 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 | 254,836,775 | |
| -1 | -254,836,775 |
Let's try dividing by 4:
254,836,775 ÷ 4 = 63,709,193.75
If the quotient is a whole number, then 4 and 63,709,193.75 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 | 254,836,775 | |
| -1 | 254,836,775 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 29 | 145 | 313 | 725 | 1,123 | 1,565 | 5,615 | 7,825 | 9,077 | 28,075 | 32,567 | 45,385 | 162,835 | 226,925 | 351,499 | 814,175 | 1,757,495 | 8,787,475 | 10,193,471 | 50,967,355 | 254,836,775 |
| -1 | -5 | -25 | -29 | -145 | -313 | -725 | -1,123 | -1,565 | -5,615 | -7,825 | -9,077 | -28,075 | -32,567 | -45,385 | -162,835 | -226,925 | -351,499 | -814,175 | -1,757,495 | -8,787,475 | -10,193,471 | -50,967,355 | -254,836,775 |
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