A:
Positive:
1 x 12223321317 x 719018919 x 6433327223 x 548131323 x 3784311697 x 720293791 x 322434237 x 28849
Negative:
-1 x -122233213-17 x -7190189-19 x -6433327-223 x -548131-323 x -378431-1697 x -72029-3791 x -32243-4237 x -28849
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 122,233,213, 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 | 122,233,213 | |
| -1 | -122,233,213 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 122,233,213.
Example:
1 x 122,233,213 = 122,233,213
and
-1 x -122,233,213 = 122,233,213
Notice both answers equal 122,233,213
With that explanation out of the way, let's continue. Next, we take the number 122,233,213 and divide it by 2:
122,233,213 ÷ 2 = 61,116,606.5
If the quotient is a whole number, then 2 and 61,116,606.5 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 | 122,233,213 | |
| -1 | -122,233,213 |
Now, we try dividing 122,233,213 by 3:
122,233,213 ÷ 3 = 40,744,404.3333
If the quotient is a whole number, then 3 and 40,744,404.3333 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 | 122,233,213 | |
| -1 | -122,233,213 |
Let's try dividing by 4:
122,233,213 ÷ 4 = 30,558,303.25
If the quotient is a whole number, then 4 and 30,558,303.25 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 | 122,233,213 | |
| -1 | 122,233,213 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 223 | 323 | 1,697 | 3,791 | 4,237 | 28,849 | 32,243 | 72,029 | 378,431 | 548,131 | 6,433,327 | 7,190,189 | 122,233,213 |
| -1 | -17 | -19 | -223 | -323 | -1,697 | -3,791 | -4,237 | -28,849 | -32,243 | -72,029 | -378,431 | -548,131 | -6,433,327 | -7,190,189 | -122,233,213 |
Here are some more numbers to try:
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