A:
Positive:
1 x 208106355 x 416212717 x 122415585 x 244831103 x 202045515 x 404091751 x 118852377 x 8755
Negative:
-1 x -20810635-5 x -4162127-17 x -1224155-85 x -244831-103 x -202045-515 x -40409-1751 x -11885-2377 x -8755
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 20,810,635, 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 | 20,810,635 | |
| -1 | -20,810,635 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,810,635.
Example:
1 x 20,810,635 = 20,810,635
and
-1 x -20,810,635 = 20,810,635
Notice both answers equal 20,810,635
With that explanation out of the way, let's continue. Next, we take the number 20,810,635 and divide it by 2:
20,810,635 ÷ 2 = 10,405,317.5
If the quotient is a whole number, then 2 and 10,405,317.5 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 | 20,810,635 | |
| -1 | -20,810,635 |
Now, we try dividing 20,810,635 by 3:
20,810,635 ÷ 3 = 6,936,878.3333
If the quotient is a whole number, then 3 and 6,936,878.3333 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 | 20,810,635 | |
| -1 | -20,810,635 |
Let's try dividing by 4:
20,810,635 ÷ 4 = 5,202,658.75
If the quotient is a whole number, then 4 and 5,202,658.75 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 | 20,810,635 | |
| -1 | 20,810,635 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 103 | 515 | 1,751 | 2,377 | 8,755 | 11,885 | 40,409 | 202,045 | 244,831 | 1,224,155 | 4,162,127 | 20,810,635 |
| -1 | -5 | -17 | -85 | -103 | -515 | -1,751 | -2,377 | -8,755 | -11,885 | -40,409 | -202,045 | -244,831 | -1,224,155 | -4,162,127 | -20,810,635 |
Here are some more numbers to try:
Try the factor calculator