A:
Positive:
1 x 20906655 x 41813319 x 11003559 x 3543595 x 22007295 x 7087373 x 56051121 x 1865
Negative:
-1 x -2090665-5 x -418133-19 x -110035-59 x -35435-95 x -22007-295 x -7087-373 x -5605-1121 x -1865
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 2,090,665, 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 | 2,090,665 | |
| -1 | -2,090,665 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,090,665.
Example:
1 x 2,090,665 = 2,090,665
and
-1 x -2,090,665 = 2,090,665
Notice both answers equal 2,090,665
With that explanation out of the way, let's continue. Next, we take the number 2,090,665 and divide it by 2:
2,090,665 ÷ 2 = 1,045,332.5
If the quotient is a whole number, then 2 and 1,045,332.5 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 | 2,090,665 | |
| -1 | -2,090,665 |
Now, we try dividing 2,090,665 by 3:
2,090,665 ÷ 3 = 696,888.3333
If the quotient is a whole number, then 3 and 696,888.3333 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 | 2,090,665 | |
| -1 | -2,090,665 |
Let's try dividing by 4:
2,090,665 ÷ 4 = 522,666.25
If the quotient is a whole number, then 4 and 522,666.25 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 | 2,090,665 | |
| -1 | 2,090,665 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 59 | 95 | 295 | 373 | 1,121 | 1,865 | 5,605 | 7,087 | 22,007 | 35,435 | 110,035 | 418,133 | 2,090,665 |
| -1 | -5 | -19 | -59 | -95 | -295 | -373 | -1,121 | -1,865 | -5,605 | -7,087 | -22,007 | -35,435 | -110,035 | -418,133 | -2,090,665 |
Here are some more numbers to try:
Try the factor calculator