A:
Positive:
1 x 1313526255 x 2627052517 x 772662525 x 525410585 x 1545325125 x 1050821425 x 3090652125 x 61813
Negative:
-1 x -131352625-5 x -26270525-17 x -7726625-25 x -5254105-85 x -1545325-125 x -1050821-425 x -309065-2125 x -61813
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 131,352,625, 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 | 131,352,625 | |
| -1 | -131,352,625 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 131,352,625.
Example:
1 x 131,352,625 = 131,352,625
and
-1 x -131,352,625 = 131,352,625
Notice both answers equal 131,352,625
With that explanation out of the way, let's continue. Next, we take the number 131,352,625 and divide it by 2:
131,352,625 ÷ 2 = 65,676,312.5
If the quotient is a whole number, then 2 and 65,676,312.5 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 | 131,352,625 | |
| -1 | -131,352,625 |
Now, we try dividing 131,352,625 by 3:
131,352,625 ÷ 3 = 43,784,208.3333
If the quotient is a whole number, then 3 and 43,784,208.3333 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 | 131,352,625 | |
| -1 | -131,352,625 |
Let's try dividing by 4:
131,352,625 ÷ 4 = 32,838,156.25
If the quotient is a whole number, then 4 and 32,838,156.25 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 | 131,352,625 | |
| -1 | 131,352,625 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 25 | 85 | 125 | 425 | 2,125 | 61,813 | 309,065 | 1,050,821 | 1,545,325 | 5,254,105 | 7,726,625 | 26,270,525 | 131,352,625 |
| -1 | -5 | -17 | -25 | -85 | -125 | -425 | -2,125 | -61,813 | -309,065 | -1,050,821 | -1,545,325 | -5,254,105 | -7,726,625 | -26,270,525 | -131,352,625 |
Here are some more numbers to try:
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