A:
Positive:
1 x 380385855 x 760771713 x 292604565 x 585209761 x 49985769 x 494653805 x 99973845 x 9893
Negative:
-1 x -38038585-5 x -7607717-13 x -2926045-65 x -585209-761 x -49985-769 x -49465-3805 x -9997-3845 x -9893
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 38,038,585, 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 | 38,038,585 | |
| -1 | -38,038,585 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 38,038,585.
Example:
1 x 38,038,585 = 38,038,585
and
-1 x -38,038,585 = 38,038,585
Notice both answers equal 38,038,585
With that explanation out of the way, let's continue. Next, we take the number 38,038,585 and divide it by 2:
38,038,585 ÷ 2 = 19,019,292.5
If the quotient is a whole number, then 2 and 19,019,292.5 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 | 38,038,585 | |
| -1 | -38,038,585 |
Now, we try dividing 38,038,585 by 3:
38,038,585 ÷ 3 = 12,679,528.3333
If the quotient is a whole number, then 3 and 12,679,528.3333 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 | 38,038,585 | |
| -1 | -38,038,585 |
Let's try dividing by 4:
38,038,585 ÷ 4 = 9,509,646.25
If the quotient is a whole number, then 4 and 9,509,646.25 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 | 38,038,585 | |
| -1 | 38,038,585 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 761 | 769 | 3,805 | 3,845 | 9,893 | 9,997 | 49,465 | 49,985 | 585,209 | 2,926,045 | 7,607,717 | 38,038,585 |
| -1 | -5 | -13 | -65 | -761 | -769 | -3,805 | -3,845 | -9,893 | -9,997 | -49,465 | -49,985 | -585,209 | -2,926,045 | -7,607,717 | -38,038,585 |
Here are some more numbers to try:
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