A:
Positive:
1 x 39827155 x 79654311 x 36206529 x 13733555 x 72413121 x 32915145 x 27467227 x 17545319 x 12485605 x 65831135 x 35091595 x 2497
Negative:
-1 x -3982715-5 x -796543-11 x -362065-29 x -137335-55 x -72413-121 x -32915-145 x -27467-227 x -17545-319 x -12485-605 x -6583-1135 x -3509-1595 x -2497
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 3,982,715, 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 | 3,982,715 | |
| -1 | -3,982,715 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,982,715.
Example:
1 x 3,982,715 = 3,982,715
and
-1 x -3,982,715 = 3,982,715
Notice both answers equal 3,982,715
With that explanation out of the way, let's continue. Next, we take the number 3,982,715 and divide it by 2:
3,982,715 ÷ 2 = 1,991,357.5
If the quotient is a whole number, then 2 and 1,991,357.5 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 | 3,982,715 | |
| -1 | -3,982,715 |
Now, we try dividing 3,982,715 by 3:
3,982,715 ÷ 3 = 1,327,571.6667
If the quotient is a whole number, then 3 and 1,327,571.6667 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 | 3,982,715 | |
| -1 | -3,982,715 |
Let's try dividing by 4:
3,982,715 ÷ 4 = 995,678.75
If the quotient is a whole number, then 4 and 995,678.75 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 | 3,982,715 | |
| -1 | 3,982,715 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 29 | 55 | 121 | 145 | 227 | 319 | 605 | 1,135 | 1,595 | 2,497 | 3,509 | 6,583 | 12,485 | 17,545 | 27,467 | 32,915 | 72,413 | 137,335 | 362,065 | 796,543 | 3,982,715 |
| -1 | -5 | -11 | -29 | -55 | -121 | -145 | -227 | -319 | -605 | -1,135 | -1,595 | -2,497 | -3,509 | -6,583 | -12,485 | -17,545 | -27,467 | -32,915 | -72,413 | -137,335 | -362,065 | -796,543 | -3,982,715 |
Here are some more numbers to try:
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