A:
Positive:
1 x 27971655 x 5594337 x 39959535 x 7991949 x 57085233 x 12005245 x 11417343 x 81551165 x 24011631 x 1715
Negative:
-1 x -2797165-5 x -559433-7 x -399595-35 x -79919-49 x -57085-233 x -12005-245 x -11417-343 x -8155-1165 x -2401-1631 x -1715
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 2,797,165, 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 | 2,797,165 | |
| -1 | -2,797,165 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,797,165.
Example:
1 x 2,797,165 = 2,797,165
and
-1 x -2,797,165 = 2,797,165
Notice both answers equal 2,797,165
With that explanation out of the way, let's continue. Next, we take the number 2,797,165 and divide it by 2:
2,797,165 ÷ 2 = 1,398,582.5
If the quotient is a whole number, then 2 and 1,398,582.5 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 | 2,797,165 | |
| -1 | -2,797,165 |
Now, we try dividing 2,797,165 by 3:
2,797,165 ÷ 3 = 932,388.3333
If the quotient is a whole number, then 3 and 932,388.3333 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 | 2,797,165 | |
| -1 | -2,797,165 |
Let's try dividing by 4:
2,797,165 ÷ 4 = 699,291.25
If the quotient is a whole number, then 4 and 699,291.25 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 | 2,797,165 | |
| -1 | 2,797,165 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 49 | 233 | 245 | 343 | 1,165 | 1,631 | 1,715 | 2,401 | 8,155 | 11,417 | 12,005 | 57,085 | 79,919 | 399,595 | 559,433 | 2,797,165 |
| -1 | -5 | -7 | -35 | -49 | -233 | -245 | -343 | -1,165 | -1,631 | -1,715 | -2,401 | -8,155 | -11,417 | -12,005 | -57,085 | -79,919 | -399,595 | -559,433 | -2,797,165 |
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