A:
Positive:
1 x 2618086911 x 238007913 x 2013913143 x 183083223 x 117403821 x 318892453 x 106732899 x 9031
Negative:
-1 x -26180869-11 x -2380079-13 x -2013913-143 x -183083-223 x -117403-821 x -31889-2453 x -10673-2899 x -9031
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 26,180,869, 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 | 26,180,869 | |
| -1 | -26,180,869 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 26,180,869.
Example:
1 x 26,180,869 = 26,180,869
and
-1 x -26,180,869 = 26,180,869
Notice both answers equal 26,180,869
With that explanation out of the way, let's continue. Next, we take the number 26,180,869 and divide it by 2:
26,180,869 ÷ 2 = 13,090,434.5
If the quotient is a whole number, then 2 and 13,090,434.5 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 | 26,180,869 | |
| -1 | -26,180,869 |
Now, we try dividing 26,180,869 by 3:
26,180,869 ÷ 3 = 8,726,956.3333
If the quotient is a whole number, then 3 and 8,726,956.3333 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 | 26,180,869 | |
| -1 | -26,180,869 |
Let's try dividing by 4:
26,180,869 ÷ 4 = 6,545,217.25
If the quotient is a whole number, then 4 and 6,545,217.25 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 | 26,180,869 | |
| -1 | 26,180,869 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 143 | 223 | 821 | 2,453 | 2,899 | 9,031 | 10,673 | 31,889 | 117,403 | 183,083 | 2,013,913 | 2,380,079 | 26,180,869 |
| -1 | -11 | -13 | -143 | -223 | -821 | -2,453 | -2,899 | -9,031 | -10,673 | -31,889 | -117,403 | -183,083 | -2,013,913 | -2,380,079 | -26,180,869 |
Here are some more numbers to try:
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