A:
Positive:
1 x 3211524555 x 6423049113 x 2470403565 x 4940807103 x 3117985515 x 6235971339 x 2398456695 x 47969
Negative:
-1 x -321152455-5 x -64230491-13 x -24704035-65 x -4940807-103 x -3117985-515 x -623597-1339 x -239845-6695 x -47969
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 321,152,455, 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 | 321,152,455 | |
| -1 | -321,152,455 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 321,152,455.
Example:
1 x 321,152,455 = 321,152,455
and
-1 x -321,152,455 = 321,152,455
Notice both answers equal 321,152,455
With that explanation out of the way, let's continue. Next, we take the number 321,152,455 and divide it by 2:
321,152,455 ÷ 2 = 160,576,227.5
If the quotient is a whole number, then 2 and 160,576,227.5 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 | 321,152,455 | |
| -1 | -321,152,455 |
Now, we try dividing 321,152,455 by 3:
321,152,455 ÷ 3 = 107,050,818.3333
If the quotient is a whole number, then 3 and 107,050,818.3333 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 | 321,152,455 | |
| -1 | -321,152,455 |
Let's try dividing by 4:
321,152,455 ÷ 4 = 80,288,113.75
If the quotient is a whole number, then 4 and 80,288,113.75 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 | 321,152,455 | |
| -1 | 321,152,455 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 103 | 515 | 1,339 | 6,695 | 47,969 | 239,845 | 623,597 | 3,117,985 | 4,940,807 | 24,704,035 | 64,230,491 | 321,152,455 |
| -1 | -5 | -13 | -65 | -103 | -515 | -1,339 | -6,695 | -47,969 | -239,845 | -623,597 | -3,117,985 | -4,940,807 | -24,704,035 | -64,230,491 | -321,152,455 |
Here are some more numbers to try:
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