A:
Positive:
1 x 12032203153 x 227022773 x 1648247137 x 878263227 x 5300533869 x 310997261 x 1657110001 x 12031
Negative:
-1 x -120322031-53 x -2270227-73 x -1648247-137 x -878263-227 x -530053-3869 x -31099-7261 x -16571-10001 x -12031
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 120,322,031, 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 | 120,322,031 | |
| -1 | -120,322,031 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,322,031.
Example:
1 x 120,322,031 = 120,322,031
and
-1 x -120,322,031 = 120,322,031
Notice both answers equal 120,322,031
With that explanation out of the way, let's continue. Next, we take the number 120,322,031 and divide it by 2:
120,322,031 ÷ 2 = 60,161,015.5
If the quotient is a whole number, then 2 and 60,161,015.5 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 | 120,322,031 | |
| -1 | -120,322,031 |
Now, we try dividing 120,322,031 by 3:
120,322,031 ÷ 3 = 40,107,343.6667
If the quotient is a whole number, then 3 and 40,107,343.6667 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 | 120,322,031 | |
| -1 | -120,322,031 |
Let's try dividing by 4:
120,322,031 ÷ 4 = 30,080,507.75
If the quotient is a whole number, then 4 and 30,080,507.75 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 | 120,322,031 | |
| -1 | 120,322,031 |
If you did it right, you will end up with this table:
| 1 | 53 | 73 | 137 | 227 | 3,869 | 7,261 | 10,001 | 12,031 | 16,571 | 31,099 | 530,053 | 878,263 | 1,648,247 | 2,270,227 | 120,322,031 |
| -1 | -53 | -73 | -137 | -227 | -3,869 | -7,261 | -10,001 | -12,031 | -16,571 | -31,099 | -530,053 | -878,263 | -1,648,247 | -2,270,227 | -120,322,031 |
Here are some more numbers to try:
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