A:
Positive:
1 x 1152204137 x 1646005911 x 1047458349 x 235143777 x 1496369241 x 478093539 x 213767887 x 1298991687 x 682992651 x 434636209 x 185579757 x 11809
Negative:
-1 x -115220413-7 x -16460059-11 x -10474583-49 x -2351437-77 x -1496369-241 x -478093-539 x -213767-887 x -129899-1687 x -68299-2651 x -43463-6209 x -18557-9757 x -11809
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 115,220,413, 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 | 115,220,413 | |
| -1 | -115,220,413 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 115,220,413.
Example:
1 x 115,220,413 = 115,220,413
and
-1 x -115,220,413 = 115,220,413
Notice both answers equal 115,220,413
With that explanation out of the way, let's continue. Next, we take the number 115,220,413 and divide it by 2:
115,220,413 ÷ 2 = 57,610,206.5
If the quotient is a whole number, then 2 and 57,610,206.5 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 | 115,220,413 | |
| -1 | -115,220,413 |
Now, we try dividing 115,220,413 by 3:
115,220,413 ÷ 3 = 38,406,804.3333
If the quotient is a whole number, then 3 and 38,406,804.3333 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 | 115,220,413 | |
| -1 | -115,220,413 |
Let's try dividing by 4:
115,220,413 ÷ 4 = 28,805,103.25
If the quotient is a whole number, then 4 and 28,805,103.25 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 | 115,220,413 | |
| -1 | 115,220,413 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 49 | 77 | 241 | 539 | 887 | 1,687 | 2,651 | 6,209 | 9,757 | 11,809 | 18,557 | 43,463 | 68,299 | 129,899 | 213,767 | 478,093 | 1,496,369 | 2,351,437 | 10,474,583 | 16,460,059 | 115,220,413 |
| -1 | -7 | -11 | -49 | -77 | -241 | -539 | -887 | -1,687 | -2,651 | -6,209 | -9,757 | -11,809 | -18,557 | -43,463 | -68,299 | -129,899 | -213,767 | -478,093 | -1,496,369 | -2,351,437 | -10,474,583 | -16,460,059 | -115,220,413 |
Here are some more numbers to try:
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