A:
Positive:
1 x 8250822055 x 16501644131 x 26615555155 x 5323111463 x 17820352315 x 35640711497 x 7176514353 x 57485
Negative:
-1 x -825082205-5 x -165016441-31 x -26615555-155 x -5323111-463 x -1782035-2315 x -356407-11497 x -71765-14353 x -57485
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 825,082,205, 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 | 825,082,205 | |
| -1 | -825,082,205 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 825,082,205.
Example:
1 x 825,082,205 = 825,082,205
and
-1 x -825,082,205 = 825,082,205
Notice both answers equal 825,082,205
With that explanation out of the way, let's continue. Next, we take the number 825,082,205 and divide it by 2:
825,082,205 ÷ 2 = 412,541,102.5
If the quotient is a whole number, then 2 and 412,541,102.5 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 | 825,082,205 | |
| -1 | -825,082,205 |
Now, we try dividing 825,082,205 by 3:
825,082,205 ÷ 3 = 275,027,401.6667
If the quotient is a whole number, then 3 and 275,027,401.6667 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 | 825,082,205 | |
| -1 | -825,082,205 |
Let's try dividing by 4:
825,082,205 ÷ 4 = 206,270,551.25
If the quotient is a whole number, then 4 and 206,270,551.25 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 | 825,082,205 | |
| -1 | 825,082,205 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 155 | 463 | 2,315 | 11,497 | 14,353 | 57,485 | 71,765 | 356,407 | 1,782,035 | 5,323,111 | 26,615,555 | 165,016,441 | 825,082,205 |
| -1 | -5 | -31 | -155 | -463 | -2,315 | -11,497 | -14,353 | -57,485 | -71,765 | -356,407 | -1,782,035 | -5,323,111 | -26,615,555 | -165,016,441 | -825,082,205 |
Here are some more numbers to try:
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