A:
Positive:
1 x 206340655 x 412681331 x 665615155 x 133123239 x 86335557 x 370451195 x 172672785 x 7409
Negative:
-1 x -20634065-5 x -4126813-31 x -665615-155 x -133123-239 x -86335-557 x -37045-1195 x -17267-2785 x -7409
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 20,634,065, 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 | 20,634,065 | |
| -1 | -20,634,065 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,634,065.
Example:
1 x 20,634,065 = 20,634,065
and
-1 x -20,634,065 = 20,634,065
Notice both answers equal 20,634,065
With that explanation out of the way, let's continue. Next, we take the number 20,634,065 and divide it by 2:
20,634,065 ÷ 2 = 10,317,032.5
If the quotient is a whole number, then 2 and 10,317,032.5 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 | 20,634,065 | |
| -1 | -20,634,065 |
Now, we try dividing 20,634,065 by 3:
20,634,065 ÷ 3 = 6,878,021.6667
If the quotient is a whole number, then 3 and 6,878,021.6667 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 | 20,634,065 | |
| -1 | -20,634,065 |
Let's try dividing by 4:
20,634,065 ÷ 4 = 5,158,516.25
If the quotient is a whole number, then 4 and 5,158,516.25 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 | 20,634,065 | |
| -1 | 20,634,065 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 155 | 239 | 557 | 1,195 | 2,785 | 7,409 | 17,267 | 37,045 | 86,335 | 133,123 | 665,615 | 4,126,813 | 20,634,065 |
| -1 | -5 | -31 | -155 | -239 | -557 | -1,195 | -2,785 | -7,409 | -17,267 | -37,045 | -86,335 | -133,123 | -665,615 | -4,126,813 | -20,634,065 |
Here are some more numbers to try:
Try the factor calculator