A:
Positive:
1 x 216005655 x 43201137 x 308579523 x 93915535 x 617159115 x 187831161 x 134165805 x 26833
Negative:
-1 x -21600565-5 x -4320113-7 x -3085795-23 x -939155-35 x -617159-115 x -187831-161 x -134165-805 x -26833
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 21,600,565, 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 | 21,600,565 | |
| -1 | -21,600,565 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,600,565.
Example:
1 x 21,600,565 = 21,600,565
and
-1 x -21,600,565 = 21,600,565
Notice both answers equal 21,600,565
With that explanation out of the way, let's continue. Next, we take the number 21,600,565 and divide it by 2:
21,600,565 ÷ 2 = 10,800,282.5
If the quotient is a whole number, then 2 and 10,800,282.5 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 | 21,600,565 | |
| -1 | -21,600,565 |
Now, we try dividing 21,600,565 by 3:
21,600,565 ÷ 3 = 7,200,188.3333
If the quotient is a whole number, then 3 and 7,200,188.3333 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 | 21,600,565 | |
| -1 | -21,600,565 |
Let's try dividing by 4:
21,600,565 ÷ 4 = 5,400,141.25
If the quotient is a whole number, then 4 and 5,400,141.25 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 | 21,600,565 | |
| -1 | 21,600,565 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 23 | 35 | 115 | 161 | 805 | 26,833 | 134,165 | 187,831 | 617,159 | 939,155 | 3,085,795 | 4,320,113 | 21,600,565 |
| -1 | -5 | -7 | -23 | -35 | -115 | -161 | -805 | -26,833 | -134,165 | -187,831 | -617,159 | -939,155 | -3,085,795 | -4,320,113 | -21,600,565 |
Here are some more numbers to try:
Try the factor calculator