A:
Positive:
1 x 166154155 x 332308343 x 386405109 x 152435215 x 77281545 x 30487709 x 234353545 x 4687
Negative:
-1 x -16615415-5 x -3323083-43 x -386405-109 x -152435-215 x -77281-545 x -30487-709 x -23435-3545 x -4687
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 16,615,415, 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 | 16,615,415 | |
| -1 | -16,615,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,615,415.
Example:
1 x 16,615,415 = 16,615,415
and
-1 x -16,615,415 = 16,615,415
Notice both answers equal 16,615,415
With that explanation out of the way, let's continue. Next, we take the number 16,615,415 and divide it by 2:
16,615,415 ÷ 2 = 8,307,707.5
If the quotient is a whole number, then 2 and 8,307,707.5 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 | 16,615,415 | |
| -1 | -16,615,415 |
Now, we try dividing 16,615,415 by 3:
16,615,415 ÷ 3 = 5,538,471.6667
If the quotient is a whole number, then 3 and 5,538,471.6667 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 | 16,615,415 | |
| -1 | -16,615,415 |
Let's try dividing by 4:
16,615,415 ÷ 4 = 4,153,853.75
If the quotient is a whole number, then 4 and 4,153,853.75 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 | 16,615,415 | |
| -1 | 16,615,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 109 | 215 | 545 | 709 | 3,545 | 4,687 | 23,435 | 30,487 | 77,281 | 152,435 | 386,405 | 3,323,083 | 16,615,415 |
| -1 | -5 | -43 | -109 | -215 | -545 | -709 | -3,545 | -4,687 | -23,435 | -30,487 | -77,281 | -152,435 | -386,405 | -3,323,083 | -16,615,415 |
Here are some more numbers to try:
Try the factor calculator