A:
Positive:
1 x 40651255 x 81302517 x 23912525 x 16260585 x 47825125 x 32521425 x 95651913 x 2125
Negative:
-1 x -4065125-5 x -813025-17 x -239125-25 x -162605-85 x -47825-125 x -32521-425 x -9565-1913 x -2125
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 4,065,125, 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 | 4,065,125 | |
| -1 | -4,065,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 4,065,125.
Example:
1 x 4,065,125 = 4,065,125
and
-1 x -4,065,125 = 4,065,125
Notice both answers equal 4,065,125
With that explanation out of the way, let's continue. Next, we take the number 4,065,125 and divide it by 2:
4,065,125 ÷ 2 = 2,032,562.5
If the quotient is a whole number, then 2 and 2,032,562.5 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 | 4,065,125 | |
| -1 | -4,065,125 |
Now, we try dividing 4,065,125 by 3:
4,065,125 ÷ 3 = 1,355,041.6667
If the quotient is a whole number, then 3 and 1,355,041.6667 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 | 4,065,125 | |
| -1 | -4,065,125 |
Let's try dividing by 4:
4,065,125 ÷ 4 = 1,016,281.25
If the quotient is a whole number, then 4 and 1,016,281.25 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 | 4,065,125 | |
| -1 | 4,065,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 25 | 85 | 125 | 425 | 1,913 | 2,125 | 9,565 | 32,521 | 47,825 | 162,605 | 239,125 | 813,025 | 4,065,125 |
| -1 | -5 | -17 | -25 | -85 | -125 | -425 | -1,913 | -2,125 | -9,565 | -32,521 | -47,825 | -162,605 | -239,125 | -813,025 | -4,065,125 |
Here are some more numbers to try:
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