A:
Positive:
1 x 2556169755 x 5112339519 x 1345352525 x 1022467995 x 2690705359 x 712025475 x 5381411499 x 1705251795 x 1424056821 x 374757495 x 341058975 x 28481
Negative:
-1 x -255616975-5 x -51123395-19 x -13453525-25 x -10224679-95 x -2690705-359 x -712025-475 x -538141-1499 x -170525-1795 x -142405-6821 x -37475-7495 x -34105-8975 x -28481
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 255,616,975, 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 | 255,616,975 | |
| -1 | -255,616,975 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 255,616,975.
Example:
1 x 255,616,975 = 255,616,975
and
-1 x -255,616,975 = 255,616,975
Notice both answers equal 255,616,975
With that explanation out of the way, let's continue. Next, we take the number 255,616,975 and divide it by 2:
255,616,975 ÷ 2 = 127,808,487.5
If the quotient is a whole number, then 2 and 127,808,487.5 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 | 255,616,975 | |
| -1 | -255,616,975 |
Now, we try dividing 255,616,975 by 3:
255,616,975 ÷ 3 = 85,205,658.3333
If the quotient is a whole number, then 3 and 85,205,658.3333 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 | 255,616,975 | |
| -1 | -255,616,975 |
Let's try dividing by 4:
255,616,975 ÷ 4 = 63,904,243.75
If the quotient is a whole number, then 4 and 63,904,243.75 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 | 255,616,975 | |
| -1 | 255,616,975 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 25 | 95 | 359 | 475 | 1,499 | 1,795 | 6,821 | 7,495 | 8,975 | 28,481 | 34,105 | 37,475 | 142,405 | 170,525 | 538,141 | 712,025 | 2,690,705 | 10,224,679 | 13,453,525 | 51,123,395 | 255,616,975 |
| -1 | -5 | -19 | -25 | -95 | -359 | -475 | -1,499 | -1,795 | -6,821 | -7,495 | -8,975 | -28,481 | -34,105 | -37,475 | -142,405 | -170,525 | -538,141 | -712,025 | -2,690,705 | -10,224,679 | -13,453,525 | -51,123,395 | -255,616,975 |
Here are some more numbers to try:
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