A:
Positive:
1 x 11555656129 x 398470931 x 3727631173 x 667957743 x 155527899 x 1285395017 x 230335363 x 21547
Negative:
-1 x -115556561-29 x -3984709-31 x -3727631-173 x -667957-743 x -155527-899 x -128539-5017 x -23033-5363 x -21547
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 115,556,561, 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 | 115,556,561 | |
| -1 | -115,556,561 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 115,556,561.
Example:
1 x 115,556,561 = 115,556,561
and
-1 x -115,556,561 = 115,556,561
Notice both answers equal 115,556,561
With that explanation out of the way, let's continue. Next, we take the number 115,556,561 and divide it by 2:
115,556,561 ÷ 2 = 57,778,280.5
If the quotient is a whole number, then 2 and 57,778,280.5 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 | 115,556,561 | |
| -1 | -115,556,561 |
Now, we try dividing 115,556,561 by 3:
115,556,561 ÷ 3 = 38,518,853.6667
If the quotient is a whole number, then 3 and 38,518,853.6667 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 | 115,556,561 | |
| -1 | -115,556,561 |
Let's try dividing by 4:
115,556,561 ÷ 4 = 28,889,140.25
If the quotient is a whole number, then 4 and 28,889,140.25 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 | 115,556,561 | |
| -1 | 115,556,561 |
If you did it right, you will end up with this table:
| 1 | 29 | 31 | 173 | 743 | 899 | 5,017 | 5,363 | 21,547 | 23,033 | 128,539 | 155,527 | 667,957 | 3,727,631 | 3,984,709 | 115,556,561 |
| -1 | -29 | -31 | -173 | -743 | -899 | -5,017 | -5,363 | -21,547 | -23,033 | -128,539 | -155,527 | -667,957 | -3,727,631 | -3,984,709 | -115,556,561 |
Here are some more numbers to try:
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