A:
Positive:
1 x 118918255 x 237836511 x 108107525 x 47567355 x 21621583 x 143275275 x 43243415 x 28655521 x 22825913 x 130252075 x 57312605 x 4565
Negative:
-1 x -11891825-5 x -2378365-11 x -1081075-25 x -475673-55 x -216215-83 x -143275-275 x -43243-415 x -28655-521 x -22825-913 x -13025-2075 x -5731-2605 x -4565
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 11,891,825, 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 | 11,891,825 | |
| -1 | -11,891,825 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,891,825.
Example:
1 x 11,891,825 = 11,891,825
and
-1 x -11,891,825 = 11,891,825
Notice both answers equal 11,891,825
With that explanation out of the way, let's continue. Next, we take the number 11,891,825 and divide it by 2:
11,891,825 ÷ 2 = 5,945,912.5
If the quotient is a whole number, then 2 and 5,945,912.5 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 | 11,891,825 | |
| -1 | -11,891,825 |
Now, we try dividing 11,891,825 by 3:
11,891,825 ÷ 3 = 3,963,941.6667
If the quotient is a whole number, then 3 and 3,963,941.6667 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 | 11,891,825 | |
| -1 | -11,891,825 |
Let's try dividing by 4:
11,891,825 ÷ 4 = 2,972,956.25
If the quotient is a whole number, then 4 and 2,972,956.25 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 | 11,891,825 | |
| -1 | 11,891,825 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 55 | 83 | 275 | 415 | 521 | 913 | 2,075 | 2,605 | 4,565 | 5,731 | 13,025 | 22,825 | 28,655 | 43,243 | 143,275 | 216,215 | 475,673 | 1,081,075 | 2,378,365 | 11,891,825 |
| -1 | -5 | -11 | -25 | -55 | -83 | -275 | -415 | -521 | -913 | -2,075 | -2,605 | -4,565 | -5,731 | -13,025 | -22,825 | -28,655 | -43,243 | -143,275 | -216,215 | -475,673 | -1,081,075 | -2,378,365 | -11,891,825 |
Here are some more numbers to try:
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