A:
Positive:
1 x 131821255 x 263642511 x 119837525 x 52728555 x 239675125 x 105457275 x 479351375 x 9587
Negative:
-1 x -13182125-5 x -2636425-11 x -1198375-25 x -527285-55 x -239675-125 x -105457-275 x -47935-1375 x -9587
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 13,182,125, 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 | 13,182,125 | |
| -1 | -13,182,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,182,125.
Example:
1 x 13,182,125 = 13,182,125
and
-1 x -13,182,125 = 13,182,125
Notice both answers equal 13,182,125
With that explanation out of the way, let's continue. Next, we take the number 13,182,125 and divide it by 2:
13,182,125 ÷ 2 = 6,591,062.5
If the quotient is a whole number, then 2 and 6,591,062.5 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 | 13,182,125 | |
| -1 | -13,182,125 |
Now, we try dividing 13,182,125 by 3:
13,182,125 ÷ 3 = 4,394,041.6667
If the quotient is a whole number, then 3 and 4,394,041.6667 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 | 13,182,125 | |
| -1 | -13,182,125 |
Let's try dividing by 4:
13,182,125 ÷ 4 = 3,295,531.25
If the quotient is a whole number, then 4 and 3,295,531.25 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 | 13,182,125 | |
| -1 | 13,182,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 55 | 125 | 275 | 1,375 | 9,587 | 47,935 | 105,457 | 239,675 | 527,285 | 1,198,375 | 2,636,425 | 13,182,125 |
| -1 | -5 | -11 | -25 | -55 | -125 | -275 | -1,375 | -9,587 | -47,935 | -105,457 | -239,675 | -527,285 | -1,198,375 | -2,636,425 | -13,182,125 |
Here are some more numbers to try:
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