A:
Positive:
1 x 2040424111 x 185493113 x 156955797 x 210353143 x 1426871067 x 191231261 x 161811471 x 13871
Negative:
-1 x -20404241-11 x -1854931-13 x -1569557-97 x -210353-143 x -142687-1067 x -19123-1261 x -16181-1471 x -13871
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 20,404,241, 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 | 20,404,241 | |
| -1 | -20,404,241 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,404,241.
Example:
1 x 20,404,241 = 20,404,241
and
-1 x -20,404,241 = 20,404,241
Notice both answers equal 20,404,241
With that explanation out of the way, let's continue. Next, we take the number 20,404,241 and divide it by 2:
20,404,241 ÷ 2 = 10,202,120.5
If the quotient is a whole number, then 2 and 10,202,120.5 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 | 20,404,241 | |
| -1 | -20,404,241 |
Now, we try dividing 20,404,241 by 3:
20,404,241 ÷ 3 = 6,801,413.6667
If the quotient is a whole number, then 3 and 6,801,413.6667 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 | 20,404,241 | |
| -1 | -20,404,241 |
Let's try dividing by 4:
20,404,241 ÷ 4 = 5,101,060.25
If the quotient is a whole number, then 4 and 5,101,060.25 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 | 20,404,241 | |
| -1 | 20,404,241 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 97 | 143 | 1,067 | 1,261 | 1,471 | 13,871 | 16,181 | 19,123 | 142,687 | 210,353 | 1,569,557 | 1,854,931 | 20,404,241 |
| -1 | -11 | -13 | -97 | -143 | -1,067 | -1,261 | -1,471 | -13,871 | -16,181 | -19,123 | -142,687 | -210,353 | -1,569,557 | -1,854,931 | -20,404,241 |
Here are some more numbers to try:
Try the factor calculator