A:
Positive:
1 x 3839293913 x 295330319 x 202068137 x 1037647247 x 155437481 x 79819703 x 546134201 x 9139
Negative:
-1 x -38392939-13 x -2953303-19 x -2020681-37 x -1037647-247 x -155437-481 x -79819-703 x -54613-4201 x -9139
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 38,392,939, 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 | 38,392,939 | |
| -1 | -38,392,939 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 38,392,939.
Example:
1 x 38,392,939 = 38,392,939
and
-1 x -38,392,939 = 38,392,939
Notice both answers equal 38,392,939
With that explanation out of the way, let's continue. Next, we take the number 38,392,939 and divide it by 2:
38,392,939 ÷ 2 = 19,196,469.5
If the quotient is a whole number, then 2 and 19,196,469.5 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 | 38,392,939 | |
| -1 | -38,392,939 |
Now, we try dividing 38,392,939 by 3:
38,392,939 ÷ 3 = 12,797,646.3333
If the quotient is a whole number, then 3 and 12,797,646.3333 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 | 38,392,939 | |
| -1 | -38,392,939 |
Let's try dividing by 4:
38,392,939 ÷ 4 = 9,598,234.75
If the quotient is a whole number, then 4 and 9,598,234.75 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 | 38,392,939 | |
| -1 | 38,392,939 |
If you did it right, you will end up with this table:
| 1 | 13 | 19 | 37 | 247 | 481 | 703 | 4,201 | 9,139 | 54,613 | 79,819 | 155,437 | 1,037,647 | 2,020,681 | 2,953,303 | 38,392,939 |
| -1 | -13 | -19 | -37 | -247 | -481 | -703 | -4,201 | -9,139 | -54,613 | -79,819 | -155,437 | -1,037,647 | -2,020,681 | -2,953,303 | -38,392,939 |
Here are some more numbers to try:
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