A:
Positive:
1 x 39495555 x 78991131 x 12740583 x 47585155 x 25481307 x 12865415 x 95171535 x 2573
Negative:
-1 x -3949555-5 x -789911-31 x -127405-83 x -47585-155 x -25481-307 x -12865-415 x -9517-1535 x -2573
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 3,949,555, 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 | 3,949,555 | |
| -1 | -3,949,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,949,555.
Example:
1 x 3,949,555 = 3,949,555
and
-1 x -3,949,555 = 3,949,555
Notice both answers equal 3,949,555
With that explanation out of the way, let's continue. Next, we take the number 3,949,555 and divide it by 2:
3,949,555 ÷ 2 = 1,974,777.5
If the quotient is a whole number, then 2 and 1,974,777.5 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 | 3,949,555 | |
| -1 | -3,949,555 |
Now, we try dividing 3,949,555 by 3:
3,949,555 ÷ 3 = 1,316,518.3333
If the quotient is a whole number, then 3 and 1,316,518.3333 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 | 3,949,555 | |
| -1 | -3,949,555 |
Let's try dividing by 4:
3,949,555 ÷ 4 = 987,388.75
If the quotient is a whole number, then 4 and 987,388.75 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 | 3,949,555 | |
| -1 | 3,949,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 83 | 155 | 307 | 415 | 1,535 | 2,573 | 9,517 | 12,865 | 25,481 | 47,585 | 127,405 | 789,911 | 3,949,555 |
| -1 | -5 | -31 | -83 | -155 | -307 | -415 | -1,535 | -2,573 | -9,517 | -12,865 | -25,481 | -47,585 | -127,405 | -789,911 | -3,949,555 |
Here are some more numbers to try:
Try the factor calculator