A:
Positive:
1 x 387641655 x 775283311 x 352401517 x 228024555 x 70480385 x 456049121 x 320365187 x 207295605 x 64073935 x 414592057 x 188453769 x 10285
Negative:
-1 x -38764165-5 x -7752833-11 x -3524015-17 x -2280245-55 x -704803-85 x -456049-121 x -320365-187 x -207295-605 x -64073-935 x -41459-2057 x -18845-3769 x -10285
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 38,764,165, 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 | 38,764,165 | |
| -1 | -38,764,165 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 38,764,165.
Example:
1 x 38,764,165 = 38,764,165
and
-1 x -38,764,165 = 38,764,165
Notice both answers equal 38,764,165
With that explanation out of the way, let's continue. Next, we take the number 38,764,165 and divide it by 2:
38,764,165 ÷ 2 = 19,382,082.5
If the quotient is a whole number, then 2 and 19,382,082.5 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 | 38,764,165 | |
| -1 | -38,764,165 |
Now, we try dividing 38,764,165 by 3:
38,764,165 ÷ 3 = 12,921,388.3333
If the quotient is a whole number, then 3 and 12,921,388.3333 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 | 38,764,165 | |
| -1 | -38,764,165 |
Let's try dividing by 4:
38,764,165 ÷ 4 = 9,691,041.25
If the quotient is a whole number, then 4 and 9,691,041.25 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 | 38,764,165 | |
| -1 | 38,764,165 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 17 | 55 | 85 | 121 | 187 | 605 | 935 | 2,057 | 3,769 | 10,285 | 18,845 | 41,459 | 64,073 | 207,295 | 320,365 | 456,049 | 704,803 | 2,280,245 | 3,524,015 | 7,752,833 | 38,764,165 |
| -1 | -5 | -11 | -17 | -55 | -85 | -121 | -187 | -605 | -935 | -2,057 | -3,769 | -10,285 | -18,845 | -41,459 | -64,073 | -207,295 | -320,365 | -456,049 | -704,803 | -2,280,245 | -3,524,015 | -7,752,833 | -38,764,165 |
Here are some more numbers to try:
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