A:
Positive:
1 x 115179617 x 164542313 x 88599747 x 24506391 x 126571329 x 35009611 x 188512693 x 4277
Negative:
-1 x -11517961-7 x -1645423-13 x -885997-47 x -245063-91 x -126571-329 x -35009-611 x -18851-2693 x -4277
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 11,517,961, 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 | 11,517,961 | |
| -1 | -11,517,961 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,517,961.
Example:
1 x 11,517,961 = 11,517,961
and
-1 x -11,517,961 = 11,517,961
Notice both answers equal 11,517,961
With that explanation out of the way, let's continue. Next, we take the number 11,517,961 and divide it by 2:
11,517,961 ÷ 2 = 5,758,980.5
If the quotient is a whole number, then 2 and 5,758,980.5 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 | 11,517,961 | |
| -1 | -11,517,961 |
Now, we try dividing 11,517,961 by 3:
11,517,961 ÷ 3 = 3,839,320.3333
If the quotient is a whole number, then 3 and 3,839,320.3333 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 | 11,517,961 | |
| -1 | -11,517,961 |
Let's try dividing by 4:
11,517,961 ÷ 4 = 2,879,490.25
If the quotient is a whole number, then 4 and 2,879,490.25 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 | 11,517,961 | |
| -1 | 11,517,961 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 47 | 91 | 329 | 611 | 2,693 | 4,277 | 18,851 | 35,009 | 126,571 | 245,063 | 885,997 | 1,645,423 | 11,517,961 |
| -1 | -7 | -13 | -47 | -91 | -329 | -611 | -2,693 | -4,277 | -18,851 | -35,009 | -126,571 | -245,063 | -885,997 | -1,645,423 | -11,517,961 |
Here are some more numbers to try:
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