A:
Positive:
1 x 385511055 x 771022123 x 1676135115 x 335227271 x 1422551237 x 311651355 x 284516185 x 6233
Negative:
-1 x -38551105-5 x -7710221-23 x -1676135-115 x -335227-271 x -142255-1237 x -31165-1355 x -28451-6185 x -6233
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 38,551,105, 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 | 38,551,105 | |
| -1 | -38,551,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 38,551,105.
Example:
1 x 38,551,105 = 38,551,105
and
-1 x -38,551,105 = 38,551,105
Notice both answers equal 38,551,105
With that explanation out of the way, let's continue. Next, we take the number 38,551,105 and divide it by 2:
38,551,105 ÷ 2 = 19,275,552.5
If the quotient is a whole number, then 2 and 19,275,552.5 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 | 38,551,105 | |
| -1 | -38,551,105 |
Now, we try dividing 38,551,105 by 3:
38,551,105 ÷ 3 = 12,850,368.3333
If the quotient is a whole number, then 3 and 12,850,368.3333 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 | 38,551,105 | |
| -1 | -38,551,105 |
Let's try dividing by 4:
38,551,105 ÷ 4 = 9,637,776.25
If the quotient is a whole number, then 4 and 9,637,776.25 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 | 38,551,105 | |
| -1 | 38,551,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 271 | 1,237 | 1,355 | 6,185 | 6,233 | 28,451 | 31,165 | 142,255 | 335,227 | 1,676,135 | 7,710,221 | 38,551,105 |
| -1 | -5 | -23 | -115 | -271 | -1,237 | -1,355 | -6,185 | -6,233 | -28,451 | -31,165 | -142,255 | -335,227 | -1,676,135 | -7,710,221 | -38,551,105 |
Here are some more numbers to try:
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