A:
Positive:
1 x 1311563337 x 1873661911 x 1192330377 x 17033291087 x 1206591567 x 836997609 x 1723710969 x 11957
Negative:
-1 x -131156333-7 x -18736619-11 x -11923303-77 x -1703329-1087 x -120659-1567 x -83699-7609 x -17237-10969 x -11957
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 131,156,333, 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 | 131,156,333 | |
| -1 | -131,156,333 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 131,156,333.
Example:
1 x 131,156,333 = 131,156,333
and
-1 x -131,156,333 = 131,156,333
Notice both answers equal 131,156,333
With that explanation out of the way, let's continue. Next, we take the number 131,156,333 and divide it by 2:
131,156,333 ÷ 2 = 65,578,166.5
If the quotient is a whole number, then 2 and 65,578,166.5 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 | 131,156,333 | |
| -1 | -131,156,333 |
Now, we try dividing 131,156,333 by 3:
131,156,333 ÷ 3 = 43,718,777.6667
If the quotient is a whole number, then 3 and 43,718,777.6667 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 | 131,156,333 | |
| -1 | -131,156,333 |
Let's try dividing by 4:
131,156,333 ÷ 4 = 32,789,083.25
If the quotient is a whole number, then 4 and 32,789,083.25 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 | 131,156,333 | |
| -1 | 131,156,333 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 1,087 | 1,567 | 7,609 | 10,969 | 11,957 | 17,237 | 83,699 | 120,659 | 1,703,329 | 11,923,303 | 18,736,619 | 131,156,333 |
| -1 | -7 | -11 | -77 | -1,087 | -1,567 | -7,609 | -10,969 | -11,957 | -17,237 | -83,699 | -120,659 | -1,703,329 | -11,923,303 | -18,736,619 | -131,156,333 |
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