A:
Positive:
1 x 1204556455 x 2409112979 x 1524755395 x 304951467 x 257935653 x 1844652335 x 515873265 x 36893
Negative:
-1 x -120455645-5 x -24091129-79 x -1524755-395 x -304951-467 x -257935-653 x -184465-2335 x -51587-3265 x -36893
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 120,455,645, 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 | 120,455,645 | |
| -1 | -120,455,645 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,455,645.
Example:
1 x 120,455,645 = 120,455,645
and
-1 x -120,455,645 = 120,455,645
Notice both answers equal 120,455,645
With that explanation out of the way, let's continue. Next, we take the number 120,455,645 and divide it by 2:
120,455,645 ÷ 2 = 60,227,822.5
If the quotient is a whole number, then 2 and 60,227,822.5 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 | 120,455,645 | |
| -1 | -120,455,645 |
Now, we try dividing 120,455,645 by 3:
120,455,645 ÷ 3 = 40,151,881.6667
If the quotient is a whole number, then 3 and 40,151,881.6667 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 | 120,455,645 | |
| -1 | -120,455,645 |
Let's try dividing by 4:
120,455,645 ÷ 4 = 30,113,911.25
If the quotient is a whole number, then 4 and 30,113,911.25 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 | 120,455,645 | |
| -1 | 120,455,645 |
If you did it right, you will end up with this table:
| 1 | 5 | 79 | 395 | 467 | 653 | 2,335 | 3,265 | 36,893 | 51,587 | 184,465 | 257,935 | 304,951 | 1,524,755 | 24,091,129 | 120,455,645 |
| -1 | -5 | -79 | -395 | -467 | -653 | -2,335 | -3,265 | -36,893 | -51,587 | -184,465 | -257,935 | -304,951 | -1,524,755 | -24,091,129 | -120,455,645 |
Here are some more numbers to try:
Try the factor calculator