A:
Positive:
1 x 2222110155 x 4444220313 x 1709315565 x 3418631443 x 5016052215 x 1003215759 x 385857717 x 28795
Negative:
-1 x -222211015-5 x -44442203-13 x -17093155-65 x -3418631-443 x -501605-2215 x -100321-5759 x -38585-7717 x -28795
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 222,211,015, 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 | 222,211,015 | |
| -1 | -222,211,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 222,211,015.
Example:
1 x 222,211,015 = 222,211,015
and
-1 x -222,211,015 = 222,211,015
Notice both answers equal 222,211,015
With that explanation out of the way, let's continue. Next, we take the number 222,211,015 and divide it by 2:
222,211,015 ÷ 2 = 111,105,507.5
If the quotient is a whole number, then 2 and 111,105,507.5 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 | 222,211,015 | |
| -1 | -222,211,015 |
Now, we try dividing 222,211,015 by 3:
222,211,015 ÷ 3 = 74,070,338.3333
If the quotient is a whole number, then 3 and 74,070,338.3333 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 | 222,211,015 | |
| -1 | -222,211,015 |
Let's try dividing by 4:
222,211,015 ÷ 4 = 55,552,753.75
If the quotient is a whole number, then 4 and 55,552,753.75 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 | 222,211,015 | |
| -1 | 222,211,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 443 | 2,215 | 5,759 | 7,717 | 28,795 | 38,585 | 100,321 | 501,605 | 3,418,631 | 17,093,155 | 44,442,203 | 222,211,015 |
| -1 | -5 | -13 | -65 | -443 | -2,215 | -5,759 | -7,717 | -28,795 | -38,585 | -100,321 | -501,605 | -3,418,631 | -17,093,155 | -44,442,203 | -222,211,015 |
Here are some more numbers to try:
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