A:
Positive:
1 x 17215123107 x 160889349 x 49327461 x 37343
Negative:
-1 x -17215123-107 x -160889-349 x -49327-461 x -37343
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 17,215,123, 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 | 17,215,123 | |
| -1 | -17,215,123 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 17,215,123.
Example:
1 x 17,215,123 = 17,215,123
and
-1 x -17,215,123 = 17,215,123
Notice both answers equal 17,215,123
With that explanation out of the way, let's continue. Next, we take the number 17,215,123 and divide it by 2:
17,215,123 ÷ 2 = 8,607,561.5
If the quotient is a whole number, then 2 and 8,607,561.5 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 | 17,215,123 | |
| -1 | -17,215,123 |
Now, we try dividing 17,215,123 by 3:
17,215,123 ÷ 3 = 5,738,374.3333
If the quotient is a whole number, then 3 and 5,738,374.3333 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 | 17,215,123 | |
| -1 | -17,215,123 |
Let's try dividing by 4:
17,215,123 ÷ 4 = 4,303,780.75
If the quotient is a whole number, then 4 and 4,303,780.75 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 | 17,215,123 | |
| -1 | 17,215,123 |
If you did it right, you will end up with this table:
| 1 | 107 | 349 | 461 | 37,343 | 49,327 | 160,889 | 17,215,123 |
| -1 | -107 | -349 | -461 | -37,343 | -49,327 | -160,889 | -17,215,123 |
Here are some more numbers to try:
Try the factor calculator