A:
Positive:
1 x 193269055 x 386538113 x 148668529 x 66644565 x 297337145 x 133289377 x 512651885 x 10253
Negative:
-1 x -19326905-5 x -3865381-13 x -1486685-29 x -666445-65 x -297337-145 x -133289-377 x -51265-1885 x -10253
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 19,326,905, 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 | 19,326,905 | |
| -1 | -19,326,905 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 19,326,905.
Example:
1 x 19,326,905 = 19,326,905
and
-1 x -19,326,905 = 19,326,905
Notice both answers equal 19,326,905
With that explanation out of the way, let's continue. Next, we take the number 19,326,905 and divide it by 2:
19,326,905 ÷ 2 = 9,663,452.5
If the quotient is a whole number, then 2 and 9,663,452.5 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 | 19,326,905 | |
| -1 | -19,326,905 |
Now, we try dividing 19,326,905 by 3:
19,326,905 ÷ 3 = 6,442,301.6667
If the quotient is a whole number, then 3 and 6,442,301.6667 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 | 19,326,905 | |
| -1 | -19,326,905 |
Let's try dividing by 4:
19,326,905 ÷ 4 = 4,831,726.25
If the quotient is a whole number, then 4 and 4,831,726.25 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 | 19,326,905 | |
| -1 | 19,326,905 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 29 | 65 | 145 | 377 | 1,885 | 10,253 | 51,265 | 133,289 | 297,337 | 666,445 | 1,486,685 | 3,865,381 | 19,326,905 |
| -1 | -5 | -13 | -29 | -65 | -145 | -377 | -1,885 | -10,253 | -51,265 | -133,289 | -297,337 | -666,445 | -1,486,685 | -3,865,381 | -19,326,905 |
Here are some more numbers to try:
Try the factor calculator