A:
Positive:
1 x 3211043155 x 642208637 x 4587204535 x 917440937 x 8678495185 x 1735699259 x 12397851295 x 247957
Negative:
-1 x -321104315-5 x -64220863-7 x -45872045-35 x -9174409-37 x -8678495-185 x -1735699-259 x -1239785-1295 x -247957
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 321,104,315, 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 | 321,104,315 | |
| -1 | -321,104,315 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 321,104,315.
Example:
1 x 321,104,315 = 321,104,315
and
-1 x -321,104,315 = 321,104,315
Notice both answers equal 321,104,315
With that explanation out of the way, let's continue. Next, we take the number 321,104,315 and divide it by 2:
321,104,315 ÷ 2 = 160,552,157.5
If the quotient is a whole number, then 2 and 160,552,157.5 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 | 321,104,315 | |
| -1 | -321,104,315 |
Now, we try dividing 321,104,315 by 3:
321,104,315 ÷ 3 = 107,034,771.6667
If the quotient is a whole number, then 3 and 107,034,771.6667 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 | 321,104,315 | |
| -1 | -321,104,315 |
Let's try dividing by 4:
321,104,315 ÷ 4 = 80,276,078.75
If the quotient is a whole number, then 4 and 80,276,078.75 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 | 321,104,315 | |
| -1 | 321,104,315 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 37 | 185 | 259 | 1,295 | 247,957 | 1,239,785 | 1,735,699 | 8,678,495 | 9,174,409 | 45,872,045 | 64,220,863 | 321,104,315 |
| -1 | -5 | -7 | -35 | -37 | -185 | -259 | -1,295 | -247,957 | -1,239,785 | -1,735,699 | -8,678,495 | -9,174,409 | -45,872,045 | -64,220,863 | -321,104,315 |
Here are some more numbers to try:
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