A:
Positive:
1 x 1203242455 x 2406484919 x 633285595 x 1266571127 x 947435635 x 1894872413 x 498659973 x 12065
Negative:
-1 x -120324245-5 x -24064849-19 x -6332855-95 x -1266571-127 x -947435-635 x -189487-2413 x -49865-9973 x -12065
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 120,324,245, 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 | 120,324,245 | |
| -1 | -120,324,245 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,324,245.
Example:
1 x 120,324,245 = 120,324,245
and
-1 x -120,324,245 = 120,324,245
Notice both answers equal 120,324,245
With that explanation out of the way, let's continue. Next, we take the number 120,324,245 and divide it by 2:
120,324,245 ÷ 2 = 60,162,122.5
If the quotient is a whole number, then 2 and 60,162,122.5 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 | 120,324,245 | |
| -1 | -120,324,245 |
Now, we try dividing 120,324,245 by 3:
120,324,245 ÷ 3 = 40,108,081.6667
If the quotient is a whole number, then 3 and 40,108,081.6667 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 | 120,324,245 | |
| -1 | -120,324,245 |
Let's try dividing by 4:
120,324,245 ÷ 4 = 30,081,061.25
If the quotient is a whole number, then 4 and 30,081,061.25 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 | 120,324,245 | |
| -1 | 120,324,245 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 127 | 635 | 2,413 | 9,973 | 12,065 | 49,865 | 189,487 | 947,435 | 1,266,571 | 6,332,855 | 24,064,849 | 120,324,245 |
| -1 | -5 | -19 | -95 | -127 | -635 | -2,413 | -9,973 | -12,065 | -49,865 | -189,487 | -947,435 | -1,266,571 | -6,332,855 | -24,064,849 | -120,324,245 |
Here are some more numbers to try:
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