A:
Positive:
1 x 11532456111 x 1048405129 x 397670997 x 1188913319 x 3615191067 x 1080832813 x 409973727 x 30943
Negative:
-1 x -115324561-11 x -10484051-29 x -3976709-97 x -1188913-319 x -361519-1067 x -108083-2813 x -40997-3727 x -30943
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 115,324,561, 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 | 115,324,561 | |
| -1 | -115,324,561 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 115,324,561.
Example:
1 x 115,324,561 = 115,324,561
and
-1 x -115,324,561 = 115,324,561
Notice both answers equal 115,324,561
With that explanation out of the way, let's continue. Next, we take the number 115,324,561 and divide it by 2:
115,324,561 ÷ 2 = 57,662,280.5
If the quotient is a whole number, then 2 and 57,662,280.5 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 | 115,324,561 | |
| -1 | -115,324,561 |
Now, we try dividing 115,324,561 by 3:
115,324,561 ÷ 3 = 38,441,520.3333
If the quotient is a whole number, then 3 and 38,441,520.3333 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 | 115,324,561 | |
| -1 | -115,324,561 |
Let's try dividing by 4:
115,324,561 ÷ 4 = 28,831,140.25
If the quotient is a whole number, then 4 and 28,831,140.25 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 | 115,324,561 | |
| -1 | 115,324,561 |
If you did it right, you will end up with this table:
| 1 | 11 | 29 | 97 | 319 | 1,067 | 2,813 | 3,727 | 30,943 | 40,997 | 108,083 | 361,519 | 1,188,913 | 3,976,709 | 10,484,051 | 115,324,561 |
| -1 | -11 | -29 | -97 | -319 | -1,067 | -2,813 | -3,727 | -30,943 | -40,997 | -108,083 | -361,519 | -1,188,913 | -3,976,709 | -10,484,051 | -115,324,561 |
Here are some more numbers to try:
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