A:
Positive:
1 x 238118097 x 340168743 x 553763239 x 99631301 x 79109331 x 719391673 x 142332317 x 10277
Negative:
-1 x -23811809-7 x -3401687-43 x -553763-239 x -99631-301 x -79109-331 x -71939-1673 x -14233-2317 x -10277
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 23,811,809, 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 | 23,811,809 | |
| -1 | -23,811,809 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 23,811,809.
Example:
1 x 23,811,809 = 23,811,809
and
-1 x -23,811,809 = 23,811,809
Notice both answers equal 23,811,809
With that explanation out of the way, let's continue. Next, we take the number 23,811,809 and divide it by 2:
23,811,809 ÷ 2 = 11,905,904.5
If the quotient is a whole number, then 2 and 11,905,904.5 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 | 23,811,809 | |
| -1 | -23,811,809 |
Now, we try dividing 23,811,809 by 3:
23,811,809 ÷ 3 = 7,937,269.6667
If the quotient is a whole number, then 3 and 7,937,269.6667 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 | 23,811,809 | |
| -1 | -23,811,809 |
Let's try dividing by 4:
23,811,809 ÷ 4 = 5,952,952.25
If the quotient is a whole number, then 4 and 5,952,952.25 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 | 23,811,809 | |
| -1 | 23,811,809 |
If you did it right, you will end up with this table:
| 1 | 7 | 43 | 239 | 301 | 331 | 1,673 | 2,317 | 10,277 | 14,233 | 71,939 | 79,109 | 99,631 | 553,763 | 3,401,687 | 23,811,809 |
| -1 | -7 | -43 | -239 | -301 | -331 | -1,673 | -2,317 | -10,277 | -14,233 | -71,939 | -79,109 | -99,631 | -553,763 | -3,401,687 | -23,811,809 |
Here are some more numbers to try:
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