A:
Positive:
1 x 278070177 x 397243137 x 751541101 x 275317259 x 107363707 x 393311063 x 261593737 x 7441
Negative:
-1 x -27807017-7 x -3972431-37 x -751541-101 x -275317-259 x -107363-707 x -39331-1063 x -26159-3737 x -7441
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 27,807,017, 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 | 27,807,017 | |
| -1 | -27,807,017 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,807,017.
Example:
1 x 27,807,017 = 27,807,017
and
-1 x -27,807,017 = 27,807,017
Notice both answers equal 27,807,017
With that explanation out of the way, let's continue. Next, we take the number 27,807,017 and divide it by 2:
27,807,017 ÷ 2 = 13,903,508.5
If the quotient is a whole number, then 2 and 13,903,508.5 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 | 27,807,017 | |
| -1 | -27,807,017 |
Now, we try dividing 27,807,017 by 3:
27,807,017 ÷ 3 = 9,269,005.6667
If the quotient is a whole number, then 3 and 9,269,005.6667 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 | 27,807,017 | |
| -1 | -27,807,017 |
Let's try dividing by 4:
27,807,017 ÷ 4 = 6,951,754.25
If the quotient is a whole number, then 4 and 6,951,754.25 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 | 27,807,017 | |
| -1 | 27,807,017 |
If you did it right, you will end up with this table:
| 1 | 7 | 37 | 101 | 259 | 707 | 1,063 | 3,737 | 7,441 | 26,159 | 39,331 | 107,363 | 275,317 | 751,541 | 3,972,431 | 27,807,017 |
| -1 | -7 | -37 | -101 | -259 | -707 | -1,063 | -3,737 | -7,441 | -26,159 | -39,331 | -107,363 | -275,317 | -751,541 | -3,972,431 | -27,807,017 |
Here are some more numbers to try:
Try the factor calculator