A:
Positive:
1 x 1312326055 x 262465217 x 1874751517 x 771956535 x 374950385 x 1543913119 x 1102795595 x 220559
Negative:
-1 x -131232605-5 x -26246521-7 x -18747515-17 x -7719565-35 x -3749503-85 x -1543913-119 x -1102795-595 x -220559
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 131,232,605, 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 | 131,232,605 | |
| -1 | -131,232,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 131,232,605.
Example:
1 x 131,232,605 = 131,232,605
and
-1 x -131,232,605 = 131,232,605
Notice both answers equal 131,232,605
With that explanation out of the way, let's continue. Next, we take the number 131,232,605 and divide it by 2:
131,232,605 ÷ 2 = 65,616,302.5
If the quotient is a whole number, then 2 and 65,616,302.5 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 | 131,232,605 | |
| -1 | -131,232,605 |
Now, we try dividing 131,232,605 by 3:
131,232,605 ÷ 3 = 43,744,201.6667
If the quotient is a whole number, then 3 and 43,744,201.6667 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 | 131,232,605 | |
| -1 | -131,232,605 |
Let's try dividing by 4:
131,232,605 ÷ 4 = 32,808,151.25
If the quotient is a whole number, then 4 and 32,808,151.25 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 | 131,232,605 | |
| -1 | 131,232,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 17 | 35 | 85 | 119 | 595 | 220,559 | 1,102,795 | 1,543,913 | 3,749,503 | 7,719,565 | 18,747,515 | 26,246,521 | 131,232,605 |
| -1 | -5 | -7 | -17 | -35 | -85 | -119 | -595 | -220,559 | -1,102,795 | -1,543,913 | -3,749,503 | -7,719,565 | -18,747,515 | -26,246,521 | -131,232,605 |
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