A:
Positive:
1 x 1201023677 x 1715748111 x 1091839777 x 1559771967 x 1242011613 x 744596769 x 1774310637 x 11291
Negative:
-1 x -120102367-7 x -17157481-11 x -10918397-77 x -1559771-967 x -124201-1613 x -74459-6769 x -17743-10637 x -11291
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 120,102,367, 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 | 120,102,367 | |
| -1 | -120,102,367 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,102,367.
Example:
1 x 120,102,367 = 120,102,367
and
-1 x -120,102,367 = 120,102,367
Notice both answers equal 120,102,367
With that explanation out of the way, let's continue. Next, we take the number 120,102,367 and divide it by 2:
120,102,367 ÷ 2 = 60,051,183.5
If the quotient is a whole number, then 2 and 60,051,183.5 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 | 120,102,367 | |
| -1 | -120,102,367 |
Now, we try dividing 120,102,367 by 3:
120,102,367 ÷ 3 = 40,034,122.3333
If the quotient is a whole number, then 3 and 40,034,122.3333 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 | 120,102,367 | |
| -1 | -120,102,367 |
Let's try dividing by 4:
120,102,367 ÷ 4 = 30,025,591.75
If the quotient is a whole number, then 4 and 30,025,591.75 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 | 120,102,367 | |
| -1 | 120,102,367 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 967 | 1,613 | 6,769 | 10,637 | 11,291 | 17,743 | 74,459 | 124,201 | 1,559,771 | 10,918,397 | 17,157,481 | 120,102,367 |
| -1 | -7 | -11 | -77 | -967 | -1,613 | -6,769 | -10,637 | -11,291 | -17,743 | -74,459 | -124,201 | -1,559,771 | -10,918,397 | -17,157,481 | -120,102,367 |
Here are some more numbers to try:
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