A:
Positive:
1 x 1204010455 x 2408020983 x 1450615223 x 539915415 x 2901231115 x 1079831301 x 925456505 x 18509
Negative:
-1 x -120401045-5 x -24080209-83 x -1450615-223 x -539915-415 x -290123-1115 x -107983-1301 x -92545-6505 x -18509
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 120,401,045, 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 | 120,401,045 | |
| -1 | -120,401,045 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,401,045.
Example:
1 x 120,401,045 = 120,401,045
and
-1 x -120,401,045 = 120,401,045
Notice both answers equal 120,401,045
With that explanation out of the way, let's continue. Next, we take the number 120,401,045 and divide it by 2:
120,401,045 ÷ 2 = 60,200,522.5
If the quotient is a whole number, then 2 and 60,200,522.5 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 | 120,401,045 | |
| -1 | -120,401,045 |
Now, we try dividing 120,401,045 by 3:
120,401,045 ÷ 3 = 40,133,681.6667
If the quotient is a whole number, then 3 and 40,133,681.6667 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 | 120,401,045 | |
| -1 | -120,401,045 |
Let's try dividing by 4:
120,401,045 ÷ 4 = 30,100,261.25
If the quotient is a whole number, then 4 and 30,100,261.25 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 | 120,401,045 | |
| -1 | 120,401,045 |
If you did it right, you will end up with this table:
| 1 | 5 | 83 | 223 | 415 | 1,115 | 1,301 | 6,505 | 18,509 | 92,545 | 107,983 | 290,123 | 539,915 | 1,450,615 | 24,080,209 | 120,401,045 |
| -1 | -5 | -83 | -223 | -415 | -1,115 | -1,301 | -6,505 | -18,509 | -92,545 | -107,983 | -290,123 | -539,915 | -1,450,615 | -24,080,209 | -120,401,045 |
Here are some more numbers to try:
Try the factor calculator