A:
Positive:
1 x 30871855 x 61743743 x 7179583 x 37195173 x 17845215 x 14359415 x 7439865 x 3569
Negative:
-1 x -3087185-5 x -617437-43 x -71795-83 x -37195-173 x -17845-215 x -14359-415 x -7439-865 x -3569
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 3,087,185, 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 | 3,087,185 | |
| -1 | -3,087,185 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,087,185.
Example:
1 x 3,087,185 = 3,087,185
and
-1 x -3,087,185 = 3,087,185
Notice both answers equal 3,087,185
With that explanation out of the way, let's continue. Next, we take the number 3,087,185 and divide it by 2:
3,087,185 ÷ 2 = 1,543,592.5
If the quotient is a whole number, then 2 and 1,543,592.5 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 | 3,087,185 | |
| -1 | -3,087,185 |
Now, we try dividing 3,087,185 by 3:
3,087,185 ÷ 3 = 1,029,061.6667
If the quotient is a whole number, then 3 and 1,029,061.6667 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 | 3,087,185 | |
| -1 | -3,087,185 |
Let's try dividing by 4:
3,087,185 ÷ 4 = 771,796.25
If the quotient is a whole number, then 4 and 771,796.25 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 | 3,087,185 | |
| -1 | 3,087,185 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 83 | 173 | 215 | 415 | 865 | 3,569 | 7,439 | 14,359 | 17,845 | 37,195 | 71,795 | 617,437 | 3,087,185 |
| -1 | -5 | -43 | -83 | -173 | -215 | -415 | -865 | -3,569 | -7,439 | -14,359 | -17,845 | -37,195 | -71,795 | -617,437 | -3,087,185 |
Here are some more numbers to try:
Try the factor calculator