A:
Positive:
1 x 3210423055 x 6420846159 x 5441395295 x 1088279563 x 5702351933 x 1660852815 x 1140479665 x 33217
Negative:
-1 x -321042305-5 x -64208461-59 x -5441395-295 x -1088279-563 x -570235-1933 x -166085-2815 x -114047-9665 x -33217
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 321,042,305, 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 | 321,042,305 | |
| -1 | -321,042,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 321,042,305.
Example:
1 x 321,042,305 = 321,042,305
and
-1 x -321,042,305 = 321,042,305
Notice both answers equal 321,042,305
With that explanation out of the way, let's continue. Next, we take the number 321,042,305 and divide it by 2:
321,042,305 ÷ 2 = 160,521,152.5
If the quotient is a whole number, then 2 and 160,521,152.5 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 | 321,042,305 | |
| -1 | -321,042,305 |
Now, we try dividing 321,042,305 by 3:
321,042,305 ÷ 3 = 107,014,101.6667
If the quotient is a whole number, then 3 and 107,014,101.6667 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 | 321,042,305 | |
| -1 | -321,042,305 |
Let's try dividing by 4:
321,042,305 ÷ 4 = 80,260,576.25
If the quotient is a whole number, then 4 and 80,260,576.25 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 | 321,042,305 | |
| -1 | 321,042,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 59 | 295 | 563 | 1,933 | 2,815 | 9,665 | 33,217 | 114,047 | 166,085 | 570,235 | 1,088,279 | 5,441,395 | 64,208,461 | 321,042,305 |
| -1 | -5 | -59 | -295 | -563 | -1,933 | -2,815 | -9,665 | -33,217 | -114,047 | -166,085 | -570,235 | -1,088,279 | -5,441,395 | -64,208,461 | -321,042,305 |
Here are some more numbers to try:
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