A:
Positive:
1 x 1202301317 x 1717573323 x 522739737 x 3249463161 x 746771259 x 464209851 x 1412815957 x 20183
Negative:
-1 x -120230131-7 x -17175733-23 x -5227397-37 x -3249463-161 x -746771-259 x -464209-851 x -141281-5957 x -20183
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 120,230,131, 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 | 120,230,131 | |
| -1 | -120,230,131 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,230,131.
Example:
1 x 120,230,131 = 120,230,131
and
-1 x -120,230,131 = 120,230,131
Notice both answers equal 120,230,131
With that explanation out of the way, let's continue. Next, we take the number 120,230,131 and divide it by 2:
120,230,131 ÷ 2 = 60,115,065.5
If the quotient is a whole number, then 2 and 60,115,065.5 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 | 120,230,131 | |
| -1 | -120,230,131 |
Now, we try dividing 120,230,131 by 3:
120,230,131 ÷ 3 = 40,076,710.3333
If the quotient is a whole number, then 3 and 40,076,710.3333 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 | 120,230,131 | |
| -1 | -120,230,131 |
Let's try dividing by 4:
120,230,131 ÷ 4 = 30,057,532.75
If the quotient is a whole number, then 4 and 30,057,532.75 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 | 120,230,131 | |
| -1 | 120,230,131 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 37 | 161 | 259 | 851 | 5,957 | 20,183 | 141,281 | 464,209 | 746,771 | 3,249,463 | 5,227,397 | 17,175,733 | 120,230,131 |
| -1 | -7 | -23 | -37 | -161 | -259 | -851 | -5,957 | -20,183 | -141,281 | -464,209 | -746,771 | -3,249,463 | -5,227,397 | -17,175,733 | -120,230,131 |
Here are some more numbers to try:
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