A:
Positive:
1 x 2230002055 x 4460004131 x 7193555155 x 1438711613 x 3637852347 x 950153065 x 7275711735 x 19003
Negative:
-1 x -223000205-5 x -44600041-31 x -7193555-155 x -1438711-613 x -363785-2347 x -95015-3065 x -72757-11735 x -19003
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 223,000,205, 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 | 223,000,205 | |
| -1 | -223,000,205 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 223,000,205.
Example:
1 x 223,000,205 = 223,000,205
and
-1 x -223,000,205 = 223,000,205
Notice both answers equal 223,000,205
With that explanation out of the way, let's continue. Next, we take the number 223,000,205 and divide it by 2:
223,000,205 ÷ 2 = 111,500,102.5
If the quotient is a whole number, then 2 and 111,500,102.5 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 | 223,000,205 | |
| -1 | -223,000,205 |
Now, we try dividing 223,000,205 by 3:
223,000,205 ÷ 3 = 74,333,401.6667
If the quotient is a whole number, then 3 and 74,333,401.6667 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 | 223,000,205 | |
| -1 | -223,000,205 |
Let's try dividing by 4:
223,000,205 ÷ 4 = 55,750,051.25
If the quotient is a whole number, then 4 and 55,750,051.25 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 | 223,000,205 | |
| -1 | 223,000,205 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 155 | 613 | 2,347 | 3,065 | 11,735 | 19,003 | 72,757 | 95,015 | 363,785 | 1,438,711 | 7,193,555 | 44,600,041 | 223,000,205 |
| -1 | -5 | -31 | -155 | -613 | -2,347 | -3,065 | -11,735 | -19,003 | -72,757 | -95,015 | -363,785 | -1,438,711 | -7,193,555 | -44,600,041 | -223,000,205 |
Here are some more numbers to try:
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