A:
Positive:
1 x 3943520911 x 358501947 x 83904783 x 475123517 x 76277913 x 43193919 x 429113901 x 10109
Negative:
-1 x -39435209-11 x -3585019-47 x -839047-83 x -475123-517 x -76277-913 x -43193-919 x -42911-3901 x -10109
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 39,435,209, 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 | 39,435,209 | |
| -1 | -39,435,209 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 39,435,209.
Example:
1 x 39,435,209 = 39,435,209
and
-1 x -39,435,209 = 39,435,209
Notice both answers equal 39,435,209
With that explanation out of the way, let's continue. Next, we take the number 39,435,209 and divide it by 2:
39,435,209 ÷ 2 = 19,717,604.5
If the quotient is a whole number, then 2 and 19,717,604.5 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 | 39,435,209 | |
| -1 | -39,435,209 |
Now, we try dividing 39,435,209 by 3:
39,435,209 ÷ 3 = 13,145,069.6667
If the quotient is a whole number, then 3 and 13,145,069.6667 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 | 39,435,209 | |
| -1 | -39,435,209 |
Let's try dividing by 4:
39,435,209 ÷ 4 = 9,858,802.25
If the quotient is a whole number, then 4 and 9,858,802.25 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 | 39,435,209 | |
| -1 | 39,435,209 |
If you did it right, you will end up with this table:
| 1 | 11 | 47 | 83 | 517 | 913 | 919 | 3,901 | 10,109 | 42,911 | 43,193 | 76,277 | 475,123 | 839,047 | 3,585,019 | 39,435,209 |
| -1 | -11 | -47 | -83 | -517 | -913 | -919 | -3,901 | -10,109 | -42,911 | -43,193 | -76,277 | -475,123 | -839,047 | -3,585,019 | -39,435,209 |
Here are some more numbers to try:
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