A:
Positive:
1 x 39644455 x 79288919 x 20865529 x 13670595 x 41731145 x 27341551 x 71951439 x 2755
Negative:
-1 x -3964445-5 x -792889-19 x -208655-29 x -136705-95 x -41731-145 x -27341-551 x -7195-1439 x -2755
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 3,964,445, 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 | 3,964,445 | |
| -1 | -3,964,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,964,445.
Example:
1 x 3,964,445 = 3,964,445
and
-1 x -3,964,445 = 3,964,445
Notice both answers equal 3,964,445
With that explanation out of the way, let's continue. Next, we take the number 3,964,445 and divide it by 2:
3,964,445 ÷ 2 = 1,982,222.5
If the quotient is a whole number, then 2 and 1,982,222.5 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 | 3,964,445 | |
| -1 | -3,964,445 |
Now, we try dividing 3,964,445 by 3:
3,964,445 ÷ 3 = 1,321,481.6667
If the quotient is a whole number, then 3 and 1,321,481.6667 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 | 3,964,445 | |
| -1 | -3,964,445 |
Let's try dividing by 4:
3,964,445 ÷ 4 = 991,111.25
If the quotient is a whole number, then 4 and 991,111.25 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 | 3,964,445 | |
| -1 | 3,964,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 29 | 95 | 145 | 551 | 1,439 | 2,755 | 7,195 | 27,341 | 41,731 | 136,705 | 208,655 | 792,889 | 3,964,445 |
| -1 | -5 | -19 | -29 | -95 | -145 | -551 | -1,439 | -2,755 | -7,195 | -27,341 | -41,731 | -136,705 | -208,655 | -792,889 | -3,964,445 |
Here are some more numbers to try:
Try the factor calculator