A:
Positive:
1 x 40151155 x 80302313 x 30885565 x 61771223 x 18005277 x 144951115 x 36011385 x 2899
Negative:
-1 x -4015115-5 x -803023-13 x -308855-65 x -61771-223 x -18005-277 x -14495-1115 x -3601-1385 x -2899
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 4,015,115, 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 | 4,015,115 | |
| -1 | -4,015,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 4,015,115.
Example:
1 x 4,015,115 = 4,015,115
and
-1 x -4,015,115 = 4,015,115
Notice both answers equal 4,015,115
With that explanation out of the way, let's continue. Next, we take the number 4,015,115 and divide it by 2:
4,015,115 ÷ 2 = 2,007,557.5
If the quotient is a whole number, then 2 and 2,007,557.5 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 | 4,015,115 | |
| -1 | -4,015,115 |
Now, we try dividing 4,015,115 by 3:
4,015,115 ÷ 3 = 1,338,371.6667
If the quotient is a whole number, then 3 and 1,338,371.6667 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 | 4,015,115 | |
| -1 | -4,015,115 |
Let's try dividing by 4:
4,015,115 ÷ 4 = 1,003,778.75
If the quotient is a whole number, then 4 and 1,003,778.75 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 | 4,015,115 | |
| -1 | 4,015,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 223 | 277 | 1,115 | 1,385 | 2,899 | 3,601 | 14,495 | 18,005 | 61,771 | 308,855 | 803,023 | 4,015,115 |
| -1 | -5 | -13 | -65 | -223 | -277 | -1,115 | -1,385 | -2,899 | -3,601 | -14,495 | -18,005 | -61,771 | -308,855 | -803,023 | -4,015,115 |
Here are some more numbers to try:
Try the factor calculator