A:
Positive:
1 x 237307917 x 339011319 x 1248989113 x 210007133 x 178427791 x 300011579 x 150292147 x 11053
Negative:
-1 x -23730791-7 x -3390113-19 x -1248989-113 x -210007-133 x -178427-791 x -30001-1579 x -15029-2147 x -11053
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 23,730,791, 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 | 23,730,791 | |
| -1 | -23,730,791 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 23,730,791.
Example:
1 x 23,730,791 = 23,730,791
and
-1 x -23,730,791 = 23,730,791
Notice both answers equal 23,730,791
With that explanation out of the way, let's continue. Next, we take the number 23,730,791 and divide it by 2:
23,730,791 ÷ 2 = 11,865,395.5
If the quotient is a whole number, then 2 and 11,865,395.5 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 | 23,730,791 | |
| -1 | -23,730,791 |
Now, we try dividing 23,730,791 by 3:
23,730,791 ÷ 3 = 7,910,263.6667
If the quotient is a whole number, then 3 and 7,910,263.6667 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 | 23,730,791 | |
| -1 | -23,730,791 |
Let's try dividing by 4:
23,730,791 ÷ 4 = 5,932,697.75
If the quotient is a whole number, then 4 and 5,932,697.75 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 | 23,730,791 | |
| -1 | 23,730,791 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 113 | 133 | 791 | 1,579 | 2,147 | 11,053 | 15,029 | 30,001 | 178,427 | 210,007 | 1,248,989 | 3,390,113 | 23,730,791 |
| -1 | -7 | -19 | -113 | -133 | -791 | -1,579 | -2,147 | -11,053 | -15,029 | -30,001 | -178,427 | -210,007 | -1,248,989 | -3,390,113 | -23,730,791 |
Here are some more numbers to try:
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