A:
Positive:
1 x 119819637 x 171170941 x 29224383 x 144361287 x 41749503 x 23821581 x 206233403 x 3521
Negative:
-1 x -11981963-7 x -1711709-41 x -292243-83 x -144361-287 x -41749-503 x -23821-581 x -20623-3403 x -3521
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 11,981,963, 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 | 11,981,963 | |
| -1 | -11,981,963 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,981,963.
Example:
1 x 11,981,963 = 11,981,963
and
-1 x -11,981,963 = 11,981,963
Notice both answers equal 11,981,963
With that explanation out of the way, let's continue. Next, we take the number 11,981,963 and divide it by 2:
11,981,963 ÷ 2 = 5,990,981.5
If the quotient is a whole number, then 2 and 5,990,981.5 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 | 11,981,963 | |
| -1 | -11,981,963 |
Now, we try dividing 11,981,963 by 3:
11,981,963 ÷ 3 = 3,993,987.6667
If the quotient is a whole number, then 3 and 3,993,987.6667 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 | 11,981,963 | |
| -1 | -11,981,963 |
Let's try dividing by 4:
11,981,963 ÷ 4 = 2,995,490.75
If the quotient is a whole number, then 4 and 2,995,490.75 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 | 11,981,963 | |
| -1 | 11,981,963 |
If you did it right, you will end up with this table:
| 1 | 7 | 41 | 83 | 287 | 503 | 581 | 3,403 | 3,521 | 20,623 | 23,821 | 41,749 | 144,361 | 292,243 | 1,711,709 | 11,981,963 |
| -1 | -7 | -41 | -83 | -287 | -503 | -581 | -3,403 | -3,521 | -20,623 | -23,821 | -41,749 | -144,361 | -292,243 | -1,711,709 | -11,981,963 |
Here are some more numbers to try:
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