A:
Positive:
1 x 271868455 x 54373697 x 388383531 x 87699535 x 776767155 x 175399217 x 1252851085 x 25057
Negative:
-1 x -27186845-5 x -5437369-7 x -3883835-31 x -876995-35 x -776767-155 x -175399-217 x -125285-1085 x -25057
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 27,186,845, 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 | 27,186,845 | |
| -1 | -27,186,845 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,186,845.
Example:
1 x 27,186,845 = 27,186,845
and
-1 x -27,186,845 = 27,186,845
Notice both answers equal 27,186,845
With that explanation out of the way, let's continue. Next, we take the number 27,186,845 and divide it by 2:
27,186,845 ÷ 2 = 13,593,422.5
If the quotient is a whole number, then 2 and 13,593,422.5 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 | 27,186,845 | |
| -1 | -27,186,845 |
Now, we try dividing 27,186,845 by 3:
27,186,845 ÷ 3 = 9,062,281.6667
If the quotient is a whole number, then 3 and 9,062,281.6667 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 | 27,186,845 | |
| -1 | -27,186,845 |
Let's try dividing by 4:
27,186,845 ÷ 4 = 6,796,711.25
If the quotient is a whole number, then 4 and 6,796,711.25 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 | 27,186,845 | |
| -1 | 27,186,845 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 31 | 35 | 155 | 217 | 1,085 | 25,057 | 125,285 | 175,399 | 776,767 | 876,995 | 3,883,835 | 5,437,369 | 27,186,845 |
| -1 | -5 | -7 | -31 | -35 | -155 | -217 | -1,085 | -25,057 | -125,285 | -175,399 | -776,767 | -876,995 | -3,883,835 | -5,437,369 | -27,186,845 |
Here are some more numbers to try:
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