A:
Positive:
1 x 2030442711 x 184585713 x 1561879107 x 189761143 x 1419891177 x 172511327 x 153011391 x 14597
Negative:
-1 x -20304427-11 x -1845857-13 x -1561879-107 x -189761-143 x -141989-1177 x -17251-1327 x -15301-1391 x -14597
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 20,304,427, 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 | 20,304,427 | |
| -1 | -20,304,427 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,304,427.
Example:
1 x 20,304,427 = 20,304,427
and
-1 x -20,304,427 = 20,304,427
Notice both answers equal 20,304,427
With that explanation out of the way, let's continue. Next, we take the number 20,304,427 and divide it by 2:
20,304,427 ÷ 2 = 10,152,213.5
If the quotient is a whole number, then 2 and 10,152,213.5 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 | 20,304,427 | |
| -1 | -20,304,427 |
Now, we try dividing 20,304,427 by 3:
20,304,427 ÷ 3 = 6,768,142.3333
If the quotient is a whole number, then 3 and 6,768,142.3333 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 | 20,304,427 | |
| -1 | -20,304,427 |
Let's try dividing by 4:
20,304,427 ÷ 4 = 5,076,106.75
If the quotient is a whole number, then 4 and 5,076,106.75 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 | 20,304,427 | |
| -1 | 20,304,427 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 107 | 143 | 1,177 | 1,327 | 1,391 | 14,597 | 15,301 | 17,251 | 141,989 | 189,761 | 1,561,879 | 1,845,857 | 20,304,427 |
| -1 | -11 | -13 | -107 | -143 | -1,177 | -1,327 | -1,391 | -14,597 | -15,301 | -17,251 | -141,989 | -189,761 | -1,561,879 | -1,845,857 | -20,304,427 |
Here are some more numbers to try:
Try the factor calculator