A:
Positive:
1 x 278318955 x 55663797 x 397598513 x 214091535 x 79519765 x 42818391 x 305845455 x 61169
Negative:
-1 x -27831895-5 x -5566379-7 x -3975985-13 x -2140915-35 x -795197-65 x -428183-91 x -305845-455 x -61169
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 27,831,895, 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 | 27,831,895 | |
| -1 | -27,831,895 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,831,895.
Example:
1 x 27,831,895 = 27,831,895
and
-1 x -27,831,895 = 27,831,895
Notice both answers equal 27,831,895
With that explanation out of the way, let's continue. Next, we take the number 27,831,895 and divide it by 2:
27,831,895 ÷ 2 = 13,915,947.5
If the quotient is a whole number, then 2 and 13,915,947.5 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 | 27,831,895 | |
| -1 | -27,831,895 |
Now, we try dividing 27,831,895 by 3:
27,831,895 ÷ 3 = 9,277,298.3333
If the quotient is a whole number, then 3 and 9,277,298.3333 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 | 27,831,895 | |
| -1 | -27,831,895 |
Let's try dividing by 4:
27,831,895 ÷ 4 = 6,957,973.75
If the quotient is a whole number, then 4 and 6,957,973.75 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 | 27,831,895 | |
| -1 | 27,831,895 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 13 | 35 | 65 | 91 | 455 | 61,169 | 305,845 | 428,183 | 795,197 | 2,140,915 | 3,975,985 | 5,566,379 | 27,831,895 |
| -1 | -5 | -7 | -13 | -35 | -65 | -91 | -455 | -61,169 | -305,845 | -428,183 | -795,197 | -2,140,915 | -3,975,985 | -5,566,379 | -27,831,895 |
Here are some more numbers to try:
Try the factor calculator