A:
Positive:
1 x 40876255 x 81752525 x 16350553 x 77125125 x 32701265 x 15425617 x 66251325 x 3085
Negative:
-1 x -4087625-5 x -817525-25 x -163505-53 x -77125-125 x -32701-265 x -15425-617 x -6625-1325 x -3085
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 4,087,625, 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 | 4,087,625 | |
| -1 | -4,087,625 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 4,087,625.
Example:
1 x 4,087,625 = 4,087,625
and
-1 x -4,087,625 = 4,087,625
Notice both answers equal 4,087,625
With that explanation out of the way, let's continue. Next, we take the number 4,087,625 and divide it by 2:
4,087,625 ÷ 2 = 2,043,812.5
If the quotient is a whole number, then 2 and 2,043,812.5 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 | 4,087,625 | |
| -1 | -4,087,625 |
Now, we try dividing 4,087,625 by 3:
4,087,625 ÷ 3 = 1,362,541.6667
If the quotient is a whole number, then 3 and 1,362,541.6667 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 | 4,087,625 | |
| -1 | -4,087,625 |
Let's try dividing by 4:
4,087,625 ÷ 4 = 1,021,906.25
If the quotient is a whole number, then 4 and 1,021,906.25 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 | 4,087,625 | |
| -1 | 4,087,625 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 53 | 125 | 265 | 617 | 1,325 | 3,085 | 6,625 | 15,425 | 32,701 | 77,125 | 163,505 | 817,525 | 4,087,625 |
| -1 | -5 | -25 | -53 | -125 | -265 | -617 | -1,325 | -3,085 | -6,625 | -15,425 | -32,701 | -77,125 | -163,505 | -817,525 | -4,087,625 |
Here are some more numbers to try:
Try the factor calculator