A:
Positive:
1 x 2005074055 x 401014817 x 2864391535 x 572878347 x 4266115235 x 853223329 x 6094451645 x 121889
Negative:
-1 x -200507405-5 x -40101481-7 x -28643915-35 x -5728783-47 x -4266115-235 x -853223-329 x -609445-1645 x -121889
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 200,507,405, 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 | 200,507,405 | |
| -1 | -200,507,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 200,507,405.
Example:
1 x 200,507,405 = 200,507,405
and
-1 x -200,507,405 = 200,507,405
Notice both answers equal 200,507,405
With that explanation out of the way, let's continue. Next, we take the number 200,507,405 and divide it by 2:
200,507,405 ÷ 2 = 100,253,702.5
If the quotient is a whole number, then 2 and 100,253,702.5 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 | 200,507,405 | |
| -1 | -200,507,405 |
Now, we try dividing 200,507,405 by 3:
200,507,405 ÷ 3 = 66,835,801.6667
If the quotient is a whole number, then 3 and 66,835,801.6667 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 | 200,507,405 | |
| -1 | -200,507,405 |
Let's try dividing by 4:
200,507,405 ÷ 4 = 50,126,851.25
If the quotient is a whole number, then 4 and 50,126,851.25 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 | 200,507,405 | |
| -1 | 200,507,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 47 | 235 | 329 | 1,645 | 121,889 | 609,445 | 853,223 | 4,266,115 | 5,728,783 | 28,643,915 | 40,101,481 | 200,507,405 |
| -1 | -5 | -7 | -35 | -47 | -235 | -329 | -1,645 | -121,889 | -609,445 | -853,223 | -4,266,115 | -5,728,783 | -28,643,915 | -40,101,481 | -200,507,405 |
Here are some more numbers to try:
Try the factor calculator