A:
Positive:
1 x 204368755 x 408737519 x 107562525 x 81747595 x 215125125 x 163495475 x 43025625 x 326991721 x 118752375 x 8605
Negative:
-1 x -20436875-5 x -4087375-19 x -1075625-25 x -817475-95 x -215125-125 x -163495-475 x -43025-625 x -32699-1721 x -11875-2375 x -8605
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 20,436,875, 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 | 20,436,875 | |
| -1 | -20,436,875 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,436,875.
Example:
1 x 20,436,875 = 20,436,875
and
-1 x -20,436,875 = 20,436,875
Notice both answers equal 20,436,875
With that explanation out of the way, let's continue. Next, we take the number 20,436,875 and divide it by 2:
20,436,875 ÷ 2 = 10,218,437.5
If the quotient is a whole number, then 2 and 10,218,437.5 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 | 20,436,875 | |
| -1 | -20,436,875 |
Now, we try dividing 20,436,875 by 3:
20,436,875 ÷ 3 = 6,812,291.6667
If the quotient is a whole number, then 3 and 6,812,291.6667 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 | 20,436,875 | |
| -1 | -20,436,875 |
Let's try dividing by 4:
20,436,875 ÷ 4 = 5,109,218.75
If the quotient is a whole number, then 4 and 5,109,218.75 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 | 20,436,875 | |
| -1 | 20,436,875 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 25 | 95 | 125 | 475 | 625 | 1,721 | 2,375 | 8,605 | 11,875 | 32,699 | 43,025 | 163,495 | 215,125 | 817,475 | 1,075,625 | 4,087,375 | 20,436,875 |
| -1 | -5 | -19 | -25 | -95 | -125 | -475 | -625 | -1,721 | -2,375 | -8,605 | -11,875 | -32,699 | -43,025 | -163,495 | -215,125 | -817,475 | -1,075,625 | -4,087,375 | -20,436,875 |
Here are some more numbers to try:
Try the factor calculator