A:
Positive:
1 x 1115405417 x 1593436341 x 272050147 x 2373203287 x 388643329 x 3390291927 x 578838269 x 13489
Negative:
-1 x -111540541-7 x -15934363-41 x -2720501-47 x -2373203-287 x -388643-329 x -339029-1927 x -57883-8269 x -13489
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 111,540,541, 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 | 111,540,541 | |
| -1 | -111,540,541 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 111,540,541.
Example:
1 x 111,540,541 = 111,540,541
and
-1 x -111,540,541 = 111,540,541
Notice both answers equal 111,540,541
With that explanation out of the way, let's continue. Next, we take the number 111,540,541 and divide it by 2:
111,540,541 ÷ 2 = 55,770,270.5
If the quotient is a whole number, then 2 and 55,770,270.5 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 | 111,540,541 | |
| -1 | -111,540,541 |
Now, we try dividing 111,540,541 by 3:
111,540,541 ÷ 3 = 37,180,180.3333
If the quotient is a whole number, then 3 and 37,180,180.3333 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 | 111,540,541 | |
| -1 | -111,540,541 |
Let's try dividing by 4:
111,540,541 ÷ 4 = 27,885,135.25
If the quotient is a whole number, then 4 and 27,885,135.25 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 | 111,540,541 | |
| -1 | 111,540,541 |
If you did it right, you will end up with this table:
| 1 | 7 | 41 | 47 | 287 | 329 | 1,927 | 8,269 | 13,489 | 57,883 | 339,029 | 388,643 | 2,373,203 | 2,720,501 | 15,934,363 | 111,540,541 |
| -1 | -7 | -41 | -47 | -287 | -329 | -1,927 | -8,269 | -13,489 | -57,883 | -339,029 | -388,643 | -2,373,203 | -2,720,501 | -15,934,363 | -111,540,541 |
Here are some more numbers to try:
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