A:
Positive:
1 x 276039055 x 55207817 x 394341535 x 78868349 x 563345245 x 112669307 x 89915367 x 752151535 x 179831835 x 150432149 x 128452569 x 10745
Negative:
-1 x -27603905-5 x -5520781-7 x -3943415-35 x -788683-49 x -563345-245 x -112669-307 x -89915-367 x -75215-1535 x -17983-1835 x -15043-2149 x -12845-2569 x -10745
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 27,603,905, 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 | 27,603,905 | |
| -1 | -27,603,905 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,603,905.
Example:
1 x 27,603,905 = 27,603,905
and
-1 x -27,603,905 = 27,603,905
Notice both answers equal 27,603,905
With that explanation out of the way, let's continue. Next, we take the number 27,603,905 and divide it by 2:
27,603,905 ÷ 2 = 13,801,952.5
If the quotient is a whole number, then 2 and 13,801,952.5 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 | 27,603,905 | |
| -1 | -27,603,905 |
Now, we try dividing 27,603,905 by 3:
27,603,905 ÷ 3 = 9,201,301.6667
If the quotient is a whole number, then 3 and 9,201,301.6667 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 | 27,603,905 | |
| -1 | -27,603,905 |
Let's try dividing by 4:
27,603,905 ÷ 4 = 6,900,976.25
If the quotient is a whole number, then 4 and 6,900,976.25 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 | 27,603,905 | |
| -1 | 27,603,905 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 49 | 245 | 307 | 367 | 1,535 | 1,835 | 2,149 | 2,569 | 10,745 | 12,845 | 15,043 | 17,983 | 75,215 | 89,915 | 112,669 | 563,345 | 788,683 | 3,943,415 | 5,520,781 | 27,603,905 |
| -1 | -5 | -7 | -35 | -49 | -245 | -307 | -367 | -1,535 | -1,835 | -2,149 | -2,569 | -10,745 | -12,845 | -15,043 | -17,983 | -75,215 | -89,915 | -112,669 | -563,345 | -788,683 | -3,943,415 | -5,520,781 | -27,603,905 |
Here are some more numbers to try:
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