A:
Positive:
1 x 222255555 x 444511111 x 202050555 x 404101101 x 220055505 x 440111111 x 200054001 x 5555
Negative:
-1 x -22225555-5 x -4445111-11 x -2020505-55 x -404101-101 x -220055-505 x -44011-1111 x -20005-4001 x -5555
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 22,225,555, 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 | 22,225,555 | |
| -1 | -22,225,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 22,225,555.
Example:
1 x 22,225,555 = 22,225,555
and
-1 x -22,225,555 = 22,225,555
Notice both answers equal 22,225,555
With that explanation out of the way, let's continue. Next, we take the number 22,225,555 and divide it by 2:
22,225,555 ÷ 2 = 11,112,777.5
If the quotient is a whole number, then 2 and 11,112,777.5 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 | 22,225,555 | |
| -1 | -22,225,555 |
Now, we try dividing 22,225,555 by 3:
22,225,555 ÷ 3 = 7,408,518.3333
If the quotient is a whole number, then 3 and 7,408,518.3333 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 | 22,225,555 | |
| -1 | -22,225,555 |
Let's try dividing by 4:
22,225,555 ÷ 4 = 5,556,388.75
If the quotient is a whole number, then 4 and 5,556,388.75 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 | 22,225,555 | |
| -1 | 22,225,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 101 | 505 | 1,111 | 4,001 | 5,555 | 20,005 | 44,011 | 220,055 | 404,101 | 2,020,505 | 4,445,111 | 22,225,555 |
| -1 | -5 | -11 | -55 | -101 | -505 | -1,111 | -4,001 | -5,555 | -20,005 | -44,011 | -220,055 | -404,101 | -2,020,505 | -4,445,111 | -22,225,555 |
Here are some more numbers to try:
Try the factor calculator