A:
Positive:
1 x 32440402189 x 3644989101 x 3211921151 x 2148371239 x 13573398989 x 3608913439 x 2413915251 x 21271
Negative:
-1 x -324404021-89 x -3644989-101 x -3211921-151 x -2148371-239 x -1357339-8989 x -36089-13439 x -24139-15251 x -21271
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 324,404,021, 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 | 324,404,021 | |
| -1 | -324,404,021 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 324,404,021.
Example:
1 x 324,404,021 = 324,404,021
and
-1 x -324,404,021 = 324,404,021
Notice both answers equal 324,404,021
With that explanation out of the way, let's continue. Next, we take the number 324,404,021 and divide it by 2:
324,404,021 ÷ 2 = 162,202,010.5
If the quotient is a whole number, then 2 and 162,202,010.5 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 | 324,404,021 | |
| -1 | -324,404,021 |
Now, we try dividing 324,404,021 by 3:
324,404,021 ÷ 3 = 108,134,673.6667
If the quotient is a whole number, then 3 and 108,134,673.6667 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 | 324,404,021 | |
| -1 | -324,404,021 |
Let's try dividing by 4:
324,404,021 ÷ 4 = 81,101,005.25
If the quotient is a whole number, then 4 and 81,101,005.25 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 | 324,404,021 | |
| -1 | 324,404,021 |
If you did it right, you will end up with this table:
| 1 | 89 | 101 | 151 | 239 | 8,989 | 13,439 | 15,251 | 21,271 | 24,139 | 36,089 | 1,357,339 | 2,148,371 | 3,211,921 | 3,644,989 | 324,404,021 |
| -1 | -89 | -101 | -151 | -239 | -8,989 | -13,439 | -15,251 | -21,271 | -24,139 | -36,089 | -1,357,339 | -2,148,371 | -3,211,921 | -3,644,989 | -324,404,021 |
Here are some more numbers to try:
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