A:
Positive:
1 x 222201055 x 444402117 x 130706573 x 30438585 x 261413365 x 608771241 x 179053581 x 6205
Negative:
-1 x -22220105-5 x -4444021-17 x -1307065-73 x -304385-85 x -261413-365 x -60877-1241 x -17905-3581 x -6205
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 22,220,105, 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 | 22,220,105 | |
| -1 | -22,220,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 22,220,105.
Example:
1 x 22,220,105 = 22,220,105
and
-1 x -22,220,105 = 22,220,105
Notice both answers equal 22,220,105
With that explanation out of the way, let's continue. Next, we take the number 22,220,105 and divide it by 2:
22,220,105 ÷ 2 = 11,110,052.5
If the quotient is a whole number, then 2 and 11,110,052.5 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 | 22,220,105 | |
| -1 | -22,220,105 |
Now, we try dividing 22,220,105 by 3:
22,220,105 ÷ 3 = 7,406,701.6667
If the quotient is a whole number, then 3 and 7,406,701.6667 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 | 22,220,105 | |
| -1 | -22,220,105 |
Let's try dividing by 4:
22,220,105 ÷ 4 = 5,555,026.25
If the quotient is a whole number, then 4 and 5,555,026.25 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 | 22,220,105 | |
| -1 | 22,220,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 73 | 85 | 365 | 1,241 | 3,581 | 6,205 | 17,905 | 60,877 | 261,413 | 304,385 | 1,307,065 | 4,444,021 | 22,220,105 |
| -1 | -5 | -17 | -73 | -85 | -365 | -1,241 | -3,581 | -6,205 | -17,905 | -60,877 | -261,413 | -304,385 | -1,307,065 | -4,444,021 | -22,220,105 |
Here are some more numbers to try:
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