A:
Positive:
1 x 204524055 x 409048123 x 88923531 x 659755115 x 177847155 x 131951713 x 286853565 x 5737
Negative:
-1 x -20452405-5 x -4090481-23 x -889235-31 x -659755-115 x -177847-155 x -131951-713 x -28685-3565 x -5737
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 20,452,405, 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 | 20,452,405 | |
| -1 | -20,452,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,452,405.
Example:
1 x 20,452,405 = 20,452,405
and
-1 x -20,452,405 = 20,452,405
Notice both answers equal 20,452,405
With that explanation out of the way, let's continue. Next, we take the number 20,452,405 and divide it by 2:
20,452,405 ÷ 2 = 10,226,202.5
If the quotient is a whole number, then 2 and 10,226,202.5 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 | 20,452,405 | |
| -1 | -20,452,405 |
Now, we try dividing 20,452,405 by 3:
20,452,405 ÷ 3 = 6,817,468.3333
If the quotient is a whole number, then 3 and 6,817,468.3333 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 | 20,452,405 | |
| -1 | -20,452,405 |
Let's try dividing by 4:
20,452,405 ÷ 4 = 5,113,101.25
If the quotient is a whole number, then 4 and 5,113,101.25 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 | 20,452,405 | |
| -1 | 20,452,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 31 | 115 | 155 | 713 | 3,565 | 5,737 | 28,685 | 131,951 | 177,847 | 659,755 | 889,235 | 4,090,481 | 20,452,405 |
| -1 | -5 | -23 | -31 | -115 | -155 | -713 | -3,565 | -5,737 | -28,685 | -131,951 | -177,847 | -659,755 | -889,235 | -4,090,481 | -20,452,405 |
Here are some more numbers to try:
Try the factor calculator