A:
Positive:
1 x 12045421311 x 1095038353 x 2272721307 x 392359583 x 206611673 x 1789813377 x 356697403 x 16271
Negative:
-1 x -120454213-11 x -10950383-53 x -2272721-307 x -392359-583 x -206611-673 x -178981-3377 x -35669-7403 x -16271
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 120,454,213, 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 | 120,454,213 | |
| -1 | -120,454,213 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,454,213.
Example:
1 x 120,454,213 = 120,454,213
and
-1 x -120,454,213 = 120,454,213
Notice both answers equal 120,454,213
With that explanation out of the way, let's continue. Next, we take the number 120,454,213 and divide it by 2:
120,454,213 ÷ 2 = 60,227,106.5
If the quotient is a whole number, then 2 and 60,227,106.5 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 | 120,454,213 | |
| -1 | -120,454,213 |
Now, we try dividing 120,454,213 by 3:
120,454,213 ÷ 3 = 40,151,404.3333
If the quotient is a whole number, then 3 and 40,151,404.3333 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 | 120,454,213 | |
| -1 | -120,454,213 |
Let's try dividing by 4:
120,454,213 ÷ 4 = 30,113,553.25
If the quotient is a whole number, then 4 and 30,113,553.25 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 | 120,454,213 | |
| -1 | 120,454,213 |
If you did it right, you will end up with this table:
| 1 | 11 | 53 | 307 | 583 | 673 | 3,377 | 7,403 | 16,271 | 35,669 | 178,981 | 206,611 | 392,359 | 2,272,721 | 10,950,383 | 120,454,213 |
| -1 | -11 | -53 | -307 | -583 | -673 | -3,377 | -7,403 | -16,271 | -35,669 | -178,981 | -206,611 | -392,359 | -2,272,721 | -10,950,383 | -120,454,213 |
Here are some more numbers to try:
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