A:
Positive:
1 x 216332755 x 432665525 x 86533129 x 74597553 x 408175145 x 149195265 x 81635563 x 38425725 x 298391325 x 163271537 x 140752815 x 7685
Negative:
-1 x -21633275-5 x -4326655-25 x -865331-29 x -745975-53 x -408175-145 x -149195-265 x -81635-563 x -38425-725 x -29839-1325 x -16327-1537 x -14075-2815 x -7685
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 21,633,275, 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 | 21,633,275 | |
| -1 | -21,633,275 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,633,275.
Example:
1 x 21,633,275 = 21,633,275
and
-1 x -21,633,275 = 21,633,275
Notice both answers equal 21,633,275
With that explanation out of the way, let's continue. Next, we take the number 21,633,275 and divide it by 2:
21,633,275 ÷ 2 = 10,816,637.5
If the quotient is a whole number, then 2 and 10,816,637.5 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 | 21,633,275 | |
| -1 | -21,633,275 |
Now, we try dividing 21,633,275 by 3:
21,633,275 ÷ 3 = 7,211,091.6667
If the quotient is a whole number, then 3 and 7,211,091.6667 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 | 21,633,275 | |
| -1 | -21,633,275 |
Let's try dividing by 4:
21,633,275 ÷ 4 = 5,408,318.75
If the quotient is a whole number, then 4 and 5,408,318.75 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 | 21,633,275 | |
| -1 | 21,633,275 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 29 | 53 | 145 | 265 | 563 | 725 | 1,325 | 1,537 | 2,815 | 7,685 | 14,075 | 16,327 | 29,839 | 38,425 | 81,635 | 149,195 | 408,175 | 745,975 | 865,331 | 4,326,655 | 21,633,275 |
| -1 | -5 | -25 | -29 | -53 | -145 | -265 | -563 | -725 | -1,325 | -1,537 | -2,815 | -7,685 | -14,075 | -16,327 | -29,839 | -38,425 | -81,635 | -149,195 | -408,175 | -745,975 | -865,331 | -4,326,655 | -21,633,275 |
Here are some more numbers to try:
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