A:
Positive:
1 x 39824755 x 7964957 x 56892525 x 15929935 x 11378549 x 81275175 x 22757245 x 162551225 x 3251
Negative:
-1 x -3982475-5 x -796495-7 x -568925-25 x -159299-35 x -113785-49 x -81275-175 x -22757-245 x -16255-1225 x -3251
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 3,982,475, 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 | 3,982,475 | |
| -1 | -3,982,475 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,982,475.
Example:
1 x 3,982,475 = 3,982,475
and
-1 x -3,982,475 = 3,982,475
Notice both answers equal 3,982,475
With that explanation out of the way, let's continue. Next, we take the number 3,982,475 and divide it by 2:
3,982,475 ÷ 2 = 1,991,237.5
If the quotient is a whole number, then 2 and 1,991,237.5 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 | 3,982,475 | |
| -1 | -3,982,475 |
Now, we try dividing 3,982,475 by 3:
3,982,475 ÷ 3 = 1,327,491.6667
If the quotient is a whole number, then 3 and 1,327,491.6667 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 | 3,982,475 | |
| -1 | -3,982,475 |
Let's try dividing by 4:
3,982,475 ÷ 4 = 995,618.75
If the quotient is a whole number, then 4 and 995,618.75 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 | 3,982,475 | |
| -1 | 3,982,475 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 49 | 175 | 245 | 1,225 | 3,251 | 16,255 | 22,757 | 81,275 | 113,785 | 159,299 | 568,925 | 796,495 | 3,982,475 |
| -1 | -5 | -7 | -25 | -35 | -49 | -175 | -245 | -1,225 | -3,251 | -16,255 | -22,757 | -81,275 | -113,785 | -159,299 | -568,925 | -796,495 | -3,982,475 |
Here are some more numbers to try:
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