A:
Positive:
1 x 13341312173 x 182757783 x 160738797 x 1375393227 x 5877236059 x 220197081 x 188418051 x 16571
Negative:
-1 x -133413121-73 x -1827577-83 x -1607387-97 x -1375393-227 x -587723-6059 x -22019-7081 x -18841-8051 x -16571
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 133,413,121, 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 | 133,413,121 | |
| -1 | -133,413,121 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 133,413,121.
Example:
1 x 133,413,121 = 133,413,121
and
-1 x -133,413,121 = 133,413,121
Notice both answers equal 133,413,121
With that explanation out of the way, let's continue. Next, we take the number 133,413,121 and divide it by 2:
133,413,121 ÷ 2 = 66,706,560.5
If the quotient is a whole number, then 2 and 66,706,560.5 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 | 133,413,121 | |
| -1 | -133,413,121 |
Now, we try dividing 133,413,121 by 3:
133,413,121 ÷ 3 = 44,471,040.3333
If the quotient is a whole number, then 3 and 44,471,040.3333 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 | 133,413,121 | |
| -1 | -133,413,121 |
Let's try dividing by 4:
133,413,121 ÷ 4 = 33,353,280.25
If the quotient is a whole number, then 4 and 33,353,280.25 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 | 133,413,121 | |
| -1 | 133,413,121 |
If you did it right, you will end up with this table:
| 1 | 73 | 83 | 97 | 227 | 6,059 | 7,081 | 8,051 | 16,571 | 18,841 | 22,019 | 587,723 | 1,375,393 | 1,607,387 | 1,827,577 | 133,413,121 |
| -1 | -73 | -83 | -97 | -227 | -6,059 | -7,081 | -8,051 | -16,571 | -18,841 | -22,019 | -587,723 | -1,375,393 | -1,607,387 | -1,827,577 | -133,413,121 |
Here are some more numbers to try:
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