A:
Positive:
1 x 222204055 x 444408119 x 116949595 x 233899151 x 147155755 x 294311549 x 143452869 x 7745
Negative:
-1 x -22220405-5 x -4444081-19 x -1169495-95 x -233899-151 x -147155-755 x -29431-1549 x -14345-2869 x -7745
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 22,220,405, 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 | 22,220,405 | |
| -1 | -22,220,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 22,220,405.
Example:
1 x 22,220,405 = 22,220,405
and
-1 x -22,220,405 = 22,220,405
Notice both answers equal 22,220,405
With that explanation out of the way, let's continue. Next, we take the number 22,220,405 and divide it by 2:
22,220,405 ÷ 2 = 11,110,202.5
If the quotient is a whole number, then 2 and 11,110,202.5 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 | 22,220,405 | |
| -1 | -22,220,405 |
Now, we try dividing 22,220,405 by 3:
22,220,405 ÷ 3 = 7,406,801.6667
If the quotient is a whole number, then 3 and 7,406,801.6667 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 | 22,220,405 | |
| -1 | -22,220,405 |
Let's try dividing by 4:
22,220,405 ÷ 4 = 5,555,101.25
If the quotient is a whole number, then 4 and 5,555,101.25 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 | 22,220,405 | |
| -1 | 22,220,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 151 | 755 | 1,549 | 2,869 | 7,745 | 14,345 | 29,431 | 147,155 | 233,899 | 1,169,495 | 4,444,081 | 22,220,405 |
| -1 | -5 | -19 | -95 | -151 | -755 | -1,549 | -2,869 | -7,745 | -14,345 | -29,431 | -147,155 | -233,899 | -1,169,495 | -4,444,081 | -22,220,405 |
Here are some more numbers to try:
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