A:
Positive:
1 x 30875155 x 61750353 x 5825561 x 50615191 x 16165265 x 11651305 x 10123955 x 3233
Negative:
-1 x -3087515-5 x -617503-53 x -58255-61 x -50615-191 x -16165-265 x -11651-305 x -10123-955 x -3233
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 3,087,515, 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 | 3,087,515 | |
| -1 | -3,087,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,087,515.
Example:
1 x 3,087,515 = 3,087,515
and
-1 x -3,087,515 = 3,087,515
Notice both answers equal 3,087,515
With that explanation out of the way, let's continue. Next, we take the number 3,087,515 and divide it by 2:
3,087,515 ÷ 2 = 1,543,757.5
If the quotient is a whole number, then 2 and 1,543,757.5 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 | 3,087,515 | |
| -1 | -3,087,515 |
Now, we try dividing 3,087,515 by 3:
3,087,515 ÷ 3 = 1,029,171.6667
If the quotient is a whole number, then 3 and 1,029,171.6667 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 | 3,087,515 | |
| -1 | -3,087,515 |
Let's try dividing by 4:
3,087,515 ÷ 4 = 771,878.75
If the quotient is a whole number, then 4 and 771,878.75 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 | 3,087,515 | |
| -1 | 3,087,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 53 | 61 | 191 | 265 | 305 | 955 | 3,233 | 10,123 | 11,651 | 16,165 | 50,615 | 58,255 | 617,503 | 3,087,515 |
| -1 | -5 | -53 | -61 | -191 | -265 | -305 | -955 | -3,233 | -10,123 | -11,651 | -16,165 | -50,615 | -58,255 | -617,503 | -3,087,515 |
Here are some more numbers to try:
Try the factor calculator