A:
Positive:
1 x 5311728855 x 106234577113 x 4700645565 x 940129857 x 6198051097 x 4842054285 x 1239615485 x 96841
Negative:
-1 x -531172885-5 x -106234577-113 x -4700645-565 x -940129-857 x -619805-1097 x -484205-4285 x -123961-5485 x -96841
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 531,172,885, 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 | 531,172,885 | |
| -1 | -531,172,885 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 531,172,885.
Example:
1 x 531,172,885 = 531,172,885
and
-1 x -531,172,885 = 531,172,885
Notice both answers equal 531,172,885
With that explanation out of the way, let's continue. Next, we take the number 531,172,885 and divide it by 2:
531,172,885 ÷ 2 = 265,586,442.5
If the quotient is a whole number, then 2 and 265,586,442.5 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 | 531,172,885 | |
| -1 | -531,172,885 |
Now, we try dividing 531,172,885 by 3:
531,172,885 ÷ 3 = 177,057,628.3333
If the quotient is a whole number, then 3 and 177,057,628.3333 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 | 531,172,885 | |
| -1 | -531,172,885 |
Let's try dividing by 4:
531,172,885 ÷ 4 = 132,793,221.25
If the quotient is a whole number, then 4 and 132,793,221.25 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 | 531,172,885 | |
| -1 | 531,172,885 |
If you did it right, you will end up with this table:
| 1 | 5 | 113 | 565 | 857 | 1,097 | 4,285 | 5,485 | 96,841 | 123,961 | 484,205 | 619,805 | 940,129 | 4,700,645 | 106,234,577 | 531,172,885 |
| -1 | -5 | -113 | -565 | -857 | -1,097 | -4,285 | -5,485 | -96,841 | -123,961 | -484,205 | -619,805 | -940,129 | -4,700,645 | -106,234,577 | -531,172,885 |
Here are some more numbers to try:
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