A:
Positive:
1 x 3488538137 x 4983625911 x 3171398319 x 1836072777 x 4530569133 x 2622961209 x 16691571463 x 238451
Negative:
-1 x -348853813-7 x -49836259-11 x -31713983-19 x -18360727-77 x -4530569-133 x -2622961-209 x -1669157-1463 x -238451
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 348,853,813, 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 | 348,853,813 | |
| -1 | -348,853,813 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 348,853,813.
Example:
1 x 348,853,813 = 348,853,813
and
-1 x -348,853,813 = 348,853,813
Notice both answers equal 348,853,813
With that explanation out of the way, let's continue. Next, we take the number 348,853,813 and divide it by 2:
348,853,813 ÷ 2 = 174,426,906.5
If the quotient is a whole number, then 2 and 174,426,906.5 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 | 348,853,813 | |
| -1 | -348,853,813 |
Now, we try dividing 348,853,813 by 3:
348,853,813 ÷ 3 = 116,284,604.3333
If the quotient is a whole number, then 3 and 116,284,604.3333 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 | 348,853,813 | |
| -1 | -348,853,813 |
Let's try dividing by 4:
348,853,813 ÷ 4 = 87,213,453.25
If the quotient is a whole number, then 4 and 87,213,453.25 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 | 348,853,813 | |
| -1 | 348,853,813 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 19 | 77 | 133 | 209 | 1,463 | 238,451 | 1,669,157 | 2,622,961 | 4,530,569 | 18,360,727 | 31,713,983 | 49,836,259 | 348,853,813 |
| -1 | -7 | -11 | -19 | -77 | -133 | -209 | -1,463 | -238,451 | -1,669,157 | -2,622,961 | -4,530,569 | -18,360,727 | -31,713,983 | -49,836,259 | -348,853,813 |
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