A:
Positive:
1 x 1112222097 x 1588888743 x 258656349 x 2269841301 x 369509343 x 3242632107 x 527877541 x 14749
Negative:
-1 x -111222209-7 x -15888887-43 x -2586563-49 x -2269841-301 x -369509-343 x -324263-2107 x -52787-7541 x -14749
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 111,222,209, 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 | 111,222,209 | |
| -1 | -111,222,209 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 111,222,209.
Example:
1 x 111,222,209 = 111,222,209
and
-1 x -111,222,209 = 111,222,209
Notice both answers equal 111,222,209
With that explanation out of the way, let's continue. Next, we take the number 111,222,209 and divide it by 2:
111,222,209 ÷ 2 = 55,611,104.5
If the quotient is a whole number, then 2 and 55,611,104.5 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 | 111,222,209 | |
| -1 | -111,222,209 |
Now, we try dividing 111,222,209 by 3:
111,222,209 ÷ 3 = 37,074,069.6667
If the quotient is a whole number, then 3 and 37,074,069.6667 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 | 111,222,209 | |
| -1 | -111,222,209 |
Let's try dividing by 4:
111,222,209 ÷ 4 = 27,805,552.25
If the quotient is a whole number, then 4 and 27,805,552.25 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 | 111,222,209 | |
| -1 | 111,222,209 |
If you did it right, you will end up with this table:
| 1 | 7 | 43 | 49 | 301 | 343 | 2,107 | 7,541 | 14,749 | 52,787 | 324,263 | 369,509 | 2,269,841 | 2,586,563 | 15,888,887 | 111,222,209 |
| -1 | -7 | -43 | -49 | -301 | -343 | -2,107 | -7,541 | -14,749 | -52,787 | -324,263 | -369,509 | -2,269,841 | -2,586,563 | -15,888,887 | -111,222,209 |
Here are some more numbers to try:
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