A:
Positive:
1 x 237475155 x 474950311 x 215886555 x 431773113 x 210155565 x 420311243 x 191053821 x 6215
Negative:
-1 x -23747515-5 x -4749503-11 x -2158865-55 x -431773-113 x -210155-565 x -42031-1243 x -19105-3821 x -6215
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 23,747,515, 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 | 23,747,515 | |
| -1 | -23,747,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 23,747,515.
Example:
1 x 23,747,515 = 23,747,515
and
-1 x -23,747,515 = 23,747,515
Notice both answers equal 23,747,515
With that explanation out of the way, let's continue. Next, we take the number 23,747,515 and divide it by 2:
23,747,515 ÷ 2 = 11,873,757.5
If the quotient is a whole number, then 2 and 11,873,757.5 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 | 23,747,515 | |
| -1 | -23,747,515 |
Now, we try dividing 23,747,515 by 3:
23,747,515 ÷ 3 = 7,915,838.3333
If the quotient is a whole number, then 3 and 7,915,838.3333 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 | 23,747,515 | |
| -1 | -23,747,515 |
Let's try dividing by 4:
23,747,515 ÷ 4 = 5,936,878.75
If the quotient is a whole number, then 4 and 5,936,878.75 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 | 23,747,515 | |
| -1 | 23,747,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 113 | 565 | 1,243 | 3,821 | 6,215 | 19,105 | 42,031 | 210,155 | 431,773 | 2,158,865 | 4,749,503 | 23,747,515 |
| -1 | -5 | -11 | -55 | -113 | -565 | -1,243 | -3,821 | -6,215 | -19,105 | -42,031 | -210,155 | -431,773 | -2,158,865 | -4,749,503 | -23,747,515 |
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