A:
Positive:
1 x 1301717455 x 2603434911 x 1183379555 x 2366759193 x 674465965 x 1348932123 x 6131510615 x 12263
Negative:
-1 x -130171745-5 x -26034349-11 x -11833795-55 x -2366759-193 x -674465-965 x -134893-2123 x -61315-10615 x -12263
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 130,171,745, 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 | 130,171,745 | |
| -1 | -130,171,745 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 130,171,745.
Example:
1 x 130,171,745 = 130,171,745
and
-1 x -130,171,745 = 130,171,745
Notice both answers equal 130,171,745
With that explanation out of the way, let's continue. Next, we take the number 130,171,745 and divide it by 2:
130,171,745 ÷ 2 = 65,085,872.5
If the quotient is a whole number, then 2 and 65,085,872.5 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 | 130,171,745 | |
| -1 | -130,171,745 |
Now, we try dividing 130,171,745 by 3:
130,171,745 ÷ 3 = 43,390,581.6667
If the quotient is a whole number, then 3 and 43,390,581.6667 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 | 130,171,745 | |
| -1 | -130,171,745 |
Let's try dividing by 4:
130,171,745 ÷ 4 = 32,542,936.25
If the quotient is a whole number, then 4 and 32,542,936.25 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 | 130,171,745 | |
| -1 | 130,171,745 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 193 | 965 | 2,123 | 10,615 | 12,263 | 61,315 | 134,893 | 674,465 | 2,366,759 | 11,833,795 | 26,034,349 | 130,171,745 |
| -1 | -5 | -11 | -55 | -193 | -965 | -2,123 | -10,615 | -12,263 | -61,315 | -134,893 | -674,465 | -2,366,759 | -11,833,795 | -26,034,349 | -130,171,745 |
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