A:
Positive:
1 x 236165155 x 472330313 x 181665523 x 102680565 x 363331115 x 205361299 x 789851495 x 15797
Negative:
-1 x -23616515-5 x -4723303-13 x -1816655-23 x -1026805-65 x -363331-115 x -205361-299 x -78985-1495 x -15797
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 23,616,515, 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 | 23,616,515 | |
| -1 | -23,616,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 23,616,515.
Example:
1 x 23,616,515 = 23,616,515
and
-1 x -23,616,515 = 23,616,515
Notice both answers equal 23,616,515
With that explanation out of the way, let's continue. Next, we take the number 23,616,515 and divide it by 2:
23,616,515 ÷ 2 = 11,808,257.5
If the quotient is a whole number, then 2 and 11,808,257.5 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 | 23,616,515 | |
| -1 | -23,616,515 |
Now, we try dividing 23,616,515 by 3:
23,616,515 ÷ 3 = 7,872,171.6667
If the quotient is a whole number, then 3 and 7,872,171.6667 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 | 23,616,515 | |
| -1 | -23,616,515 |
Let's try dividing by 4:
23,616,515 ÷ 4 = 5,904,128.75
If the quotient is a whole number, then 4 and 5,904,128.75 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 | 23,616,515 | |
| -1 | 23,616,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 23 | 65 | 115 | 299 | 1,495 | 15,797 | 78,985 | 205,361 | 363,331 | 1,026,805 | 1,816,655 | 4,723,303 | 23,616,515 |
| -1 | -5 | -13 | -23 | -65 | -115 | -299 | -1,495 | -15,797 | -78,985 | -205,361 | -363,331 | -1,026,805 | -1,816,655 | -4,723,303 | -23,616,515 |
Here are some more numbers to try:
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