A:
Positive:
1 x 2457497911 x 223408913 x 189038317 x 1445587121 x 203099143 x 171853187 x 131417221 x 111199919 x 267411573 x 156232057 x 119472431 x 10109
Negative:
-1 x -24574979-11 x -2234089-13 x -1890383-17 x -1445587-121 x -203099-143 x -171853-187 x -131417-221 x -111199-919 x -26741-1573 x -15623-2057 x -11947-2431 x -10109
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 24,574,979, 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 | 24,574,979 | |
| -1 | -24,574,979 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 24,574,979.
Example:
1 x 24,574,979 = 24,574,979
and
-1 x -24,574,979 = 24,574,979
Notice both answers equal 24,574,979
With that explanation out of the way, let's continue. Next, we take the number 24,574,979 and divide it by 2:
24,574,979 ÷ 2 = 12,287,489.5
If the quotient is a whole number, then 2 and 12,287,489.5 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 | 24,574,979 | |
| -1 | -24,574,979 |
Now, we try dividing 24,574,979 by 3:
24,574,979 ÷ 3 = 8,191,659.6667
If the quotient is a whole number, then 3 and 8,191,659.6667 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 | 24,574,979 | |
| -1 | -24,574,979 |
Let's try dividing by 4:
24,574,979 ÷ 4 = 6,143,744.75
If the quotient is a whole number, then 4 and 6,143,744.75 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 | 24,574,979 | |
| -1 | 24,574,979 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 17 | 121 | 143 | 187 | 221 | 919 | 1,573 | 2,057 | 2,431 | 10,109 | 11,947 | 15,623 | 26,741 | 111,199 | 131,417 | 171,853 | 203,099 | 1,445,587 | 1,890,383 | 2,234,089 | 24,574,979 |
| -1 | -11 | -13 | -17 | -121 | -143 | -187 | -221 | -919 | -1,573 | -2,057 | -2,431 | -10,109 | -11,947 | -15,623 | -26,741 | -111,199 | -131,417 | -171,853 | -203,099 | -1,445,587 | -1,890,383 | -2,234,089 | -24,574,979 |
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