A:
Positive:
1 x 1321204437 x 1887434913 x 1016311191 x 1451873131 x 1008553917 x 1440791703 x 7758111083 x 11921
Negative:
-1 x -132120443-7 x -18874349-13 x -10163111-91 x -1451873-131 x -1008553-917 x -144079-1703 x -77581-11083 x -11921
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 132,120,443, 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 | 132,120,443 | |
| -1 | -132,120,443 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 132,120,443.
Example:
1 x 132,120,443 = 132,120,443
and
-1 x -132,120,443 = 132,120,443
Notice both answers equal 132,120,443
With that explanation out of the way, let's continue. Next, we take the number 132,120,443 and divide it by 2:
132,120,443 ÷ 2 = 66,060,221.5
If the quotient is a whole number, then 2 and 66,060,221.5 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 | 132,120,443 | |
| -1 | -132,120,443 |
Now, we try dividing 132,120,443 by 3:
132,120,443 ÷ 3 = 44,040,147.6667
If the quotient is a whole number, then 3 and 44,040,147.6667 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 | 132,120,443 | |
| -1 | -132,120,443 |
Let's try dividing by 4:
132,120,443 ÷ 4 = 33,030,110.75
If the quotient is a whole number, then 4 and 33,030,110.75 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 | 132,120,443 | |
| -1 | 132,120,443 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 131 | 917 | 1,703 | 11,083 | 11,921 | 77,581 | 144,079 | 1,008,553 | 1,451,873 | 10,163,111 | 18,874,349 | 132,120,443 |
| -1 | -7 | -13 | -91 | -131 | -917 | -1,703 | -11,083 | -11,921 | -77,581 | -144,079 | -1,008,553 | -1,451,873 | -10,163,111 | -18,874,349 | -132,120,443 |
Here are some more numbers to try:
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