A:
Positive:
1 x 1200524155 x 240104837 x 1715034535 x 3430069137 x 876295685 x 175259959 x 1251854795 x 25037
Negative:
-1 x -120052415-5 x -24010483-7 x -17150345-35 x -3430069-137 x -876295-685 x -175259-959 x -125185-4795 x -25037
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 120,052,415, 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 | 120,052,415 | |
| -1 | -120,052,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,052,415.
Example:
1 x 120,052,415 = 120,052,415
and
-1 x -120,052,415 = 120,052,415
Notice both answers equal 120,052,415
With that explanation out of the way, let's continue. Next, we take the number 120,052,415 and divide it by 2:
120,052,415 ÷ 2 = 60,026,207.5
If the quotient is a whole number, then 2 and 60,026,207.5 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 | 120,052,415 | |
| -1 | -120,052,415 |
Now, we try dividing 120,052,415 by 3:
120,052,415 ÷ 3 = 40,017,471.6667
If the quotient is a whole number, then 3 and 40,017,471.6667 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 | 120,052,415 | |
| -1 | -120,052,415 |
Let's try dividing by 4:
120,052,415 ÷ 4 = 30,013,103.75
If the quotient is a whole number, then 4 and 30,013,103.75 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 | 120,052,415 | |
| -1 | 120,052,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 137 | 685 | 959 | 4,795 | 25,037 | 125,185 | 175,259 | 876,295 | 3,430,069 | 17,150,345 | 24,010,483 | 120,052,415 |
| -1 | -5 | -7 | -35 | -137 | -685 | -959 | -4,795 | -25,037 | -125,185 | -175,259 | -876,295 | -3,430,069 | -17,150,345 | -24,010,483 | -120,052,415 |
Here are some more numbers to try:
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