A:
Positive:
1 x 276276655 x 552553313 x 212520531 x 89121565 x 425041155 x 178243403 x 685552015 x 13711
Negative:
-1 x -27627665-5 x -5525533-13 x -2125205-31 x -891215-65 x -425041-155 x -178243-403 x -68555-2015 x -13711
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 27,627,665, 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 | 27,627,665 | |
| -1 | -27,627,665 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,627,665.
Example:
1 x 27,627,665 = 27,627,665
and
-1 x -27,627,665 = 27,627,665
Notice both answers equal 27,627,665
With that explanation out of the way, let's continue. Next, we take the number 27,627,665 and divide it by 2:
27,627,665 ÷ 2 = 13,813,832.5
If the quotient is a whole number, then 2 and 13,813,832.5 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 | 27,627,665 | |
| -1 | -27,627,665 |
Now, we try dividing 27,627,665 by 3:
27,627,665 ÷ 3 = 9,209,221.6667
If the quotient is a whole number, then 3 and 9,209,221.6667 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 | 27,627,665 | |
| -1 | -27,627,665 |
Let's try dividing by 4:
27,627,665 ÷ 4 = 6,906,916.25
If the quotient is a whole number, then 4 and 6,906,916.25 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 | 27,627,665 | |
| -1 | 27,627,665 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 31 | 65 | 155 | 403 | 2,015 | 13,711 | 68,555 | 178,243 | 425,041 | 891,215 | 2,125,205 | 5,525,533 | 27,627,665 |
| -1 | -5 | -13 | -31 | -65 | -155 | -403 | -2,015 | -13,711 | -68,555 | -178,243 | -425,041 | -891,215 | -2,125,205 | -5,525,533 | -27,627,665 |
Here are some more numbers to try:
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