A:
Positive:
1 x 383921755 x 767843523 x 166922525 x 1535687115 x 333845529 x 72575575 x 667692645 x 145152903 x 13225
Negative:
-1 x -38392175-5 x -7678435-23 x -1669225-25 x -1535687-115 x -333845-529 x -72575-575 x -66769-2645 x -14515-2903 x -13225
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 38,392,175, 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 | 38,392,175 | |
| -1 | -38,392,175 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 38,392,175.
Example:
1 x 38,392,175 = 38,392,175
and
-1 x -38,392,175 = 38,392,175
Notice both answers equal 38,392,175
With that explanation out of the way, let's continue. Next, we take the number 38,392,175 and divide it by 2:
38,392,175 ÷ 2 = 19,196,087.5
If the quotient is a whole number, then 2 and 19,196,087.5 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 | 38,392,175 | |
| -1 | -38,392,175 |
Now, we try dividing 38,392,175 by 3:
38,392,175 ÷ 3 = 12,797,391.6667
If the quotient is a whole number, then 3 and 12,797,391.6667 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 | 38,392,175 | |
| -1 | -38,392,175 |
Let's try dividing by 4:
38,392,175 ÷ 4 = 9,598,043.75
If the quotient is a whole number, then 4 and 9,598,043.75 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 | 38,392,175 | |
| -1 | 38,392,175 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 25 | 115 | 529 | 575 | 2,645 | 2,903 | 13,225 | 14,515 | 66,769 | 72,575 | 333,845 | 1,535,687 | 1,669,225 | 7,678,435 | 38,392,175 |
| -1 | -5 | -23 | -25 | -115 | -529 | -575 | -2,645 | -2,903 | -13,225 | -14,515 | -66,769 | -72,575 | -333,845 | -1,535,687 | -1,669,225 | -7,678,435 | -38,392,175 |
Here are some more numbers to try:
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