A:
Positive:
1 x 2431616755 x 4863233525 x 972646731 x 7843925155 x 1568785211 x 1152425775 x 3137571055 x 2304851487 x 1635255275 x 460976541 x 371757435 x 32705
Negative:
-1 x -243161675-5 x -48632335-25 x -9726467-31 x -7843925-155 x -1568785-211 x -1152425-775 x -313757-1055 x -230485-1487 x -163525-5275 x -46097-6541 x -37175-7435 x -32705
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 243,161,675, 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 | 243,161,675 | |
| -1 | -243,161,675 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 243,161,675.
Example:
1 x 243,161,675 = 243,161,675
and
-1 x -243,161,675 = 243,161,675
Notice both answers equal 243,161,675
With that explanation out of the way, let's continue. Next, we take the number 243,161,675 and divide it by 2:
243,161,675 ÷ 2 = 121,580,837.5
If the quotient is a whole number, then 2 and 121,580,837.5 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 | 243,161,675 | |
| -1 | -243,161,675 |
Now, we try dividing 243,161,675 by 3:
243,161,675 ÷ 3 = 81,053,891.6667
If the quotient is a whole number, then 3 and 81,053,891.6667 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 | 243,161,675 | |
| -1 | -243,161,675 |
Let's try dividing by 4:
243,161,675 ÷ 4 = 60,790,418.75
If the quotient is a whole number, then 4 and 60,790,418.75 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 | 243,161,675 | |
| -1 | 243,161,675 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 31 | 155 | 211 | 775 | 1,055 | 1,487 | 5,275 | 6,541 | 7,435 | 32,705 | 37,175 | 46,097 | 163,525 | 230,485 | 313,757 | 1,152,425 | 1,568,785 | 7,843,925 | 9,726,467 | 48,632,335 | 243,161,675 |
| -1 | -5 | -25 | -31 | -155 | -211 | -775 | -1,055 | -1,487 | -5,275 | -6,541 | -7,435 | -32,705 | -37,175 | -46,097 | -163,525 | -230,485 | -313,757 | -1,152,425 | -1,568,785 | -7,843,925 | -9,726,467 | -48,632,335 | -243,161,675 |
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