A:
Positive:
1 x 216361755 x 432723511 x 196692525 x 86544729 x 74607555 x 393385145 x 149215275 x 78677319 x 67825725 x 298431595 x 135652713 x 7975
Negative:
-1 x -21636175-5 x -4327235-11 x -1966925-25 x -865447-29 x -746075-55 x -393385-145 x -149215-275 x -78677-319 x -67825-725 x -29843-1595 x -13565-2713 x -7975
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 21,636,175, 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 | 21,636,175 | |
| -1 | -21,636,175 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,636,175.
Example:
1 x 21,636,175 = 21,636,175
and
-1 x -21,636,175 = 21,636,175
Notice both answers equal 21,636,175
With that explanation out of the way, let's continue. Next, we take the number 21,636,175 and divide it by 2:
21,636,175 ÷ 2 = 10,818,087.5
If the quotient is a whole number, then 2 and 10,818,087.5 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 | 21,636,175 | |
| -1 | -21,636,175 |
Now, we try dividing 21,636,175 by 3:
21,636,175 ÷ 3 = 7,212,058.3333
If the quotient is a whole number, then 3 and 7,212,058.3333 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 | 21,636,175 | |
| -1 | -21,636,175 |
Let's try dividing by 4:
21,636,175 ÷ 4 = 5,409,043.75
If the quotient is a whole number, then 4 and 5,409,043.75 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 | 21,636,175 | |
| -1 | 21,636,175 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 29 | 55 | 145 | 275 | 319 | 725 | 1,595 | 2,713 | 7,975 | 13,565 | 29,843 | 67,825 | 78,677 | 149,215 | 393,385 | 746,075 | 865,447 | 1,966,925 | 4,327,235 | 21,636,175 |
| -1 | -5 | -11 | -25 | -29 | -55 | -145 | -275 | -319 | -725 | -1,595 | -2,713 | -7,975 | -13,565 | -29,843 | -67,825 | -78,677 | -149,215 | -393,385 | -746,075 | -865,447 | -1,966,925 | -4,327,235 | -21,636,175 |
Here are some more numbers to try:
Try the factor calculator