A:
Positive:
1 x 32058255 x 6411657 x 45797525 x 12823335 x 9159549 x 65425175 x 18319245 x 130851225 x 2617
Negative:
-1 x -3205825-5 x -641165-7 x -457975-25 x -128233-35 x -91595-49 x -65425-175 x -18319-245 x -13085-1225 x -2617
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 3,205,825, 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 | 3,205,825 | |
| -1 | -3,205,825 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,205,825.
Example:
1 x 3,205,825 = 3,205,825
and
-1 x -3,205,825 = 3,205,825
Notice both answers equal 3,205,825
With that explanation out of the way, let's continue. Next, we take the number 3,205,825 and divide it by 2:
3,205,825 ÷ 2 = 1,602,912.5
If the quotient is a whole number, then 2 and 1,602,912.5 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 | 3,205,825 | |
| -1 | -3,205,825 |
Now, we try dividing 3,205,825 by 3:
3,205,825 ÷ 3 = 1,068,608.3333
If the quotient is a whole number, then 3 and 1,068,608.3333 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 | 3,205,825 | |
| -1 | -3,205,825 |
Let's try dividing by 4:
3,205,825 ÷ 4 = 801,456.25
If the quotient is a whole number, then 4 and 801,456.25 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 | 3,205,825 | |
| -1 | 3,205,825 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 49 | 175 | 245 | 1,225 | 2,617 | 13,085 | 18,319 | 65,425 | 91,595 | 128,233 | 457,975 | 641,165 | 3,205,825 |
| -1 | -5 | -7 | -25 | -35 | -49 | -175 | -245 | -1,225 | -2,617 | -13,085 | -18,319 | -65,425 | -91,595 | -128,233 | -457,975 | -641,165 | -3,205,825 |
Here are some more numbers to try:
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