A:
Positive:
1 x 38894055 x 77788113 x 29918553 x 7338565 x 59837265 x 14677689 x 56451129 x 3445
Negative:
-1 x -3889405-5 x -777881-13 x -299185-53 x -73385-65 x -59837-265 x -14677-689 x -5645-1129 x -3445
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 3,889,405, 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 | 3,889,405 | |
| -1 | -3,889,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,889,405.
Example:
1 x 3,889,405 = 3,889,405
and
-1 x -3,889,405 = 3,889,405
Notice both answers equal 3,889,405
With that explanation out of the way, let's continue. Next, we take the number 3,889,405 and divide it by 2:
3,889,405 ÷ 2 = 1,944,702.5
If the quotient is a whole number, then 2 and 1,944,702.5 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 | 3,889,405 | |
| -1 | -3,889,405 |
Now, we try dividing 3,889,405 by 3:
3,889,405 ÷ 3 = 1,296,468.3333
If the quotient is a whole number, then 3 and 1,296,468.3333 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 | 3,889,405 | |
| -1 | -3,889,405 |
Let's try dividing by 4:
3,889,405 ÷ 4 = 972,351.25
If the quotient is a whole number, then 4 and 972,351.25 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 | 3,889,405 | |
| -1 | 3,889,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 53 | 65 | 265 | 689 | 1,129 | 3,445 | 5,645 | 14,677 | 59,837 | 73,385 | 299,185 | 777,881 | 3,889,405 |
| -1 | -5 | -13 | -53 | -65 | -265 | -689 | -1,129 | -3,445 | -5,645 | -14,677 | -59,837 | -73,385 | -299,185 | -777,881 | -3,889,405 |
Here are some more numbers to try:
Try the factor calculator