A:
Positive:
1 x 1182382397 x 1689117723 x 5140793161 x 734399457 x 2587271607 x 735773199 x 3696110511 x 11249
Negative:
-1 x -118238239-7 x -16891177-23 x -5140793-161 x -734399-457 x -258727-1607 x -73577-3199 x -36961-10511 x -11249
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 118,238,239, 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 | 118,238,239 | |
| -1 | -118,238,239 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 118,238,239.
Example:
1 x 118,238,239 = 118,238,239
and
-1 x -118,238,239 = 118,238,239
Notice both answers equal 118,238,239
With that explanation out of the way, let's continue. Next, we take the number 118,238,239 and divide it by 2:
118,238,239 ÷ 2 = 59,119,119.5
If the quotient is a whole number, then 2 and 59,119,119.5 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 | 118,238,239 | |
| -1 | -118,238,239 |
Now, we try dividing 118,238,239 by 3:
118,238,239 ÷ 3 = 39,412,746.3333
If the quotient is a whole number, then 3 and 39,412,746.3333 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 | 118,238,239 | |
| -1 | -118,238,239 |
Let's try dividing by 4:
118,238,239 ÷ 4 = 29,559,559.75
If the quotient is a whole number, then 4 and 29,559,559.75 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 | 118,238,239 | |
| -1 | 118,238,239 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 161 | 457 | 1,607 | 3,199 | 10,511 | 11,249 | 36,961 | 73,577 | 258,727 | 734,399 | 5,140,793 | 16,891,177 | 118,238,239 |
| -1 | -7 | -23 | -161 | -457 | -1,607 | -3,199 | -10,511 | -11,249 | -36,961 | -73,577 | -258,727 | -734,399 | -5,140,793 | -16,891,177 | -118,238,239 |
Here are some more numbers to try:
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