A:
Positive:
1 x 3251200555 x 6502401113 x 2500923565 x 5001847271 x 11997051355 x 2399413523 x 9228517615 x 18457
Negative:
-1 x -325120055-5 x -65024011-13 x -25009235-65 x -5001847-271 x -1199705-1355 x -239941-3523 x -92285-17615 x -18457
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 325,120,055, 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 | 325,120,055 | |
| -1 | -325,120,055 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 325,120,055.
Example:
1 x 325,120,055 = 325,120,055
and
-1 x -325,120,055 = 325,120,055
Notice both answers equal 325,120,055
With that explanation out of the way, let's continue. Next, we take the number 325,120,055 and divide it by 2:
325,120,055 ÷ 2 = 162,560,027.5
If the quotient is a whole number, then 2 and 162,560,027.5 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 | 325,120,055 | |
| -1 | -325,120,055 |
Now, we try dividing 325,120,055 by 3:
325,120,055 ÷ 3 = 108,373,351.6667
If the quotient is a whole number, then 3 and 108,373,351.6667 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 | 325,120,055 | |
| -1 | -325,120,055 |
Let's try dividing by 4:
325,120,055 ÷ 4 = 81,280,013.75
If the quotient is a whole number, then 4 and 81,280,013.75 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 | 325,120,055 | |
| -1 | 325,120,055 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 271 | 1,355 | 3,523 | 17,615 | 18,457 | 92,285 | 239,941 | 1,199,705 | 5,001,847 | 25,009,235 | 65,024,011 | 325,120,055 |
| -1 | -5 | -13 | -65 | -271 | -1,355 | -3,523 | -17,615 | -18,457 | -92,285 | -239,941 | -1,199,705 | -5,001,847 | -25,009,235 | -65,024,011 | -325,120,055 |
Here are some more numbers to try:
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