A:
Positive:
1 x 13004143911 x 1182194967 x 1940917101 x 1287539737 x 1764471111 x 1170491747 x 744376767 x 19217
Negative:
-1 x -130041439-11 x -11821949-67 x -1940917-101 x -1287539-737 x -176447-1111 x -117049-1747 x -74437-6767 x -19217
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 130,041,439, 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 | 130,041,439 | |
| -1 | -130,041,439 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 130,041,439.
Example:
1 x 130,041,439 = 130,041,439
and
-1 x -130,041,439 = 130,041,439
Notice both answers equal 130,041,439
With that explanation out of the way, let's continue. Next, we take the number 130,041,439 and divide it by 2:
130,041,439 ÷ 2 = 65,020,719.5
If the quotient is a whole number, then 2 and 65,020,719.5 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 | 130,041,439 | |
| -1 | -130,041,439 |
Now, we try dividing 130,041,439 by 3:
130,041,439 ÷ 3 = 43,347,146.3333
If the quotient is a whole number, then 3 and 43,347,146.3333 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 | 130,041,439 | |
| -1 | -130,041,439 |
Let's try dividing by 4:
130,041,439 ÷ 4 = 32,510,359.75
If the quotient is a whole number, then 4 and 32,510,359.75 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 | 130,041,439 | |
| -1 | 130,041,439 |
If you did it right, you will end up with this table:
| 1 | 11 | 67 | 101 | 737 | 1,111 | 1,747 | 6,767 | 19,217 | 74,437 | 117,049 | 176,447 | 1,287,539 | 1,940,917 | 11,821,949 | 130,041,439 |
| -1 | -11 | -67 | -101 | -737 | -1,111 | -1,747 | -6,767 | -19,217 | -74,437 | -117,049 | -176,447 | -1,287,539 | -1,940,917 | -11,821,949 | -130,041,439 |
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