A:
Positive:
1 x 220280055 x 440560117 x 129576585 x 259153337 x 65365769 x 286451685 x 130733845 x 5729
Negative:
-1 x -22028005-5 x -4405601-17 x -1295765-85 x -259153-337 x -65365-769 x -28645-1685 x -13073-3845 x -5729
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 22,028,005, 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 | 22,028,005 | |
| -1 | -22,028,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 22,028,005.
Example:
1 x 22,028,005 = 22,028,005
and
-1 x -22,028,005 = 22,028,005
Notice both answers equal 22,028,005
With that explanation out of the way, let's continue. Next, we take the number 22,028,005 and divide it by 2:
22,028,005 ÷ 2 = 11,014,002.5
If the quotient is a whole number, then 2 and 11,014,002.5 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 | 22,028,005 | |
| -1 | -22,028,005 |
Now, we try dividing 22,028,005 by 3:
22,028,005 ÷ 3 = 7,342,668.3333
If the quotient is a whole number, then 3 and 7,342,668.3333 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 | 22,028,005 | |
| -1 | -22,028,005 |
Let's try dividing by 4:
22,028,005 ÷ 4 = 5,507,001.25
If the quotient is a whole number, then 4 and 5,507,001.25 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 | 22,028,005 | |
| -1 | 22,028,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 337 | 769 | 1,685 | 3,845 | 5,729 | 13,073 | 28,645 | 65,365 | 259,153 | 1,295,765 | 4,405,601 | 22,028,005 |
| -1 | -5 | -17 | -85 | -337 | -769 | -1,685 | -3,845 | -5,729 | -13,073 | -28,645 | -65,365 | -259,153 | -1,295,765 | -4,405,601 | -22,028,005 |
Here are some more numbers to try:
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