A:
Positive:
1 x 32114115723 x 1396265929 x 1107383343 x 7468399667 x 481471989 x 3247131247 x 25753111197 x 28681
Negative:
-1 x -321141157-23 x -13962659-29 x -11073833-43 x -7468399-667 x -481471-989 x -324713-1247 x -257531-11197 x -28681
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 321,141,157, 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 | 321,141,157 | |
| -1 | -321,141,157 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 321,141,157.
Example:
1 x 321,141,157 = 321,141,157
and
-1 x -321,141,157 = 321,141,157
Notice both answers equal 321,141,157
With that explanation out of the way, let's continue. Next, we take the number 321,141,157 and divide it by 2:
321,141,157 ÷ 2 = 160,570,578.5
If the quotient is a whole number, then 2 and 160,570,578.5 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 | 321,141,157 | |
| -1 | -321,141,157 |
Now, we try dividing 321,141,157 by 3:
321,141,157 ÷ 3 = 107,047,052.3333
If the quotient is a whole number, then 3 and 107,047,052.3333 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 | 321,141,157 | |
| -1 | -321,141,157 |
Let's try dividing by 4:
321,141,157 ÷ 4 = 80,285,289.25
If the quotient is a whole number, then 4 and 80,285,289.25 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 | 321,141,157 | |
| -1 | 321,141,157 |
If you did it right, you will end up with this table:
| 1 | 23 | 29 | 43 | 667 | 989 | 1,247 | 11,197 | 28,681 | 257,531 | 324,713 | 481,471 | 7,468,399 | 11,073,833 | 13,962,659 | 321,141,157 |
| -1 | -23 | -29 | -43 | -667 | -989 | -1,247 | -11,197 | -28,681 | -257,531 | -324,713 | -481,471 | -7,468,399 | -11,073,833 | -13,962,659 | -321,141,157 |
Here are some more numbers to try:
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