A:
Positive:
1 x 206270055 x 41254017 x 294671535 x 589343167 x 123515835 x 247031169 x 176453529 x 5845
Negative:
-1 x -20627005-5 x -4125401-7 x -2946715-35 x -589343-167 x -123515-835 x -24703-1169 x -17645-3529 x -5845
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 20,627,005, 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 | 20,627,005 | |
| -1 | -20,627,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,627,005.
Example:
1 x 20,627,005 = 20,627,005
and
-1 x -20,627,005 = 20,627,005
Notice both answers equal 20,627,005
With that explanation out of the way, let's continue. Next, we take the number 20,627,005 and divide it by 2:
20,627,005 ÷ 2 = 10,313,502.5
If the quotient is a whole number, then 2 and 10,313,502.5 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 | 20,627,005 | |
| -1 | -20,627,005 |
Now, we try dividing 20,627,005 by 3:
20,627,005 ÷ 3 = 6,875,668.3333
If the quotient is a whole number, then 3 and 6,875,668.3333 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 | 20,627,005 | |
| -1 | -20,627,005 |
Let's try dividing by 4:
20,627,005 ÷ 4 = 5,156,751.25
If the quotient is a whole number, then 4 and 5,156,751.25 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 | 20,627,005 | |
| -1 | 20,627,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 167 | 835 | 1,169 | 3,529 | 5,845 | 17,645 | 24,703 | 123,515 | 589,343 | 2,946,715 | 4,125,401 | 20,627,005 |
| -1 | -5 | -7 | -35 | -167 | -835 | -1,169 | -3,529 | -5,845 | -17,645 | -24,703 | -123,515 | -589,343 | -2,946,715 | -4,125,401 | -20,627,005 |
Here are some more numbers to try:
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