A:
Positive:
1 x 22123155 x 4424637 x 31604531 x 7136535 x 63209155 x 14273217 x 101951085 x 2039
Negative:
-1 x -2212315-5 x -442463-7 x -316045-31 x -71365-35 x -63209-155 x -14273-217 x -10195-1085 x -2039
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 2,212,315, 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 | 2,212,315 | |
| -1 | -2,212,315 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,212,315.
Example:
1 x 2,212,315 = 2,212,315
and
-1 x -2,212,315 = 2,212,315
Notice both answers equal 2,212,315
With that explanation out of the way, let's continue. Next, we take the number 2,212,315 and divide it by 2:
2,212,315 ÷ 2 = 1,106,157.5
If the quotient is a whole number, then 2 and 1,106,157.5 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 | 2,212,315 | |
| -1 | -2,212,315 |
Now, we try dividing 2,212,315 by 3:
2,212,315 ÷ 3 = 737,438.3333
If the quotient is a whole number, then 3 and 737,438.3333 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 | 2,212,315 | |
| -1 | -2,212,315 |
Let's try dividing by 4:
2,212,315 ÷ 4 = 553,078.75
If the quotient is a whole number, then 4 and 553,078.75 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 | 2,212,315 | |
| -1 | 2,212,315 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 31 | 35 | 155 | 217 | 1,085 | 2,039 | 10,195 | 14,273 | 63,209 | 71,365 | 316,045 | 442,463 | 2,212,315 |
| -1 | -5 | -7 | -31 | -35 | -155 | -217 | -1,085 | -2,039 | -10,195 | -14,273 | -63,209 | -71,365 | -316,045 | -442,463 | -2,212,315 |
Here are some more numbers to try:
Try the factor calculator