A:
Positive:
1 x 32036532123 x 13928927137 x 2338433293 x 1093397347 x 9232433151 x 1016716739 x 475397981 x 40141
Negative:
-1 x -320365321-23 x -13928927-137 x -2338433-293 x -1093397-347 x -923243-3151 x -101671-6739 x -47539-7981 x -40141
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 320,365,321, 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 | 320,365,321 | |
| -1 | -320,365,321 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 320,365,321.
Example:
1 x 320,365,321 = 320,365,321
and
-1 x -320,365,321 = 320,365,321
Notice both answers equal 320,365,321
With that explanation out of the way, let's continue. Next, we take the number 320,365,321 and divide it by 2:
320,365,321 ÷ 2 = 160,182,660.5
If the quotient is a whole number, then 2 and 160,182,660.5 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 | 320,365,321 | |
| -1 | -320,365,321 |
Now, we try dividing 320,365,321 by 3:
320,365,321 ÷ 3 = 106,788,440.3333
If the quotient is a whole number, then 3 and 106,788,440.3333 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 | 320,365,321 | |
| -1 | -320,365,321 |
Let's try dividing by 4:
320,365,321 ÷ 4 = 80,091,330.25
If the quotient is a whole number, then 4 and 80,091,330.25 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 | 320,365,321 | |
| -1 | 320,365,321 |
If you did it right, you will end up with this table:
| 1 | 23 | 137 | 293 | 347 | 3,151 | 6,739 | 7,981 | 40,141 | 47,539 | 101,671 | 923,243 | 1,093,397 | 2,338,433 | 13,928,927 | 320,365,321 |
| -1 | -23 | -137 | -293 | -347 | -3,151 | -6,739 | -7,981 | -40,141 | -47,539 | -101,671 | -923,243 | -1,093,397 | -2,338,433 | -13,928,927 | -320,365,321 |
Here are some more numbers to try:
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