A:
Positive:
1 x 160015155 x 320030319 x 84218595 x 168437389 x 41135433 x 369551945 x 82272165 x 7391
Negative:
-1 x -16001515-5 x -3200303-19 x -842185-95 x -168437-389 x -41135-433 x -36955-1945 x -8227-2165 x -7391
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 16,001,515, 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 | 16,001,515 | |
| -1 | -16,001,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,001,515.
Example:
1 x 16,001,515 = 16,001,515
and
-1 x -16,001,515 = 16,001,515
Notice both answers equal 16,001,515
With that explanation out of the way, let's continue. Next, we take the number 16,001,515 and divide it by 2:
16,001,515 ÷ 2 = 8,000,757.5
If the quotient is a whole number, then 2 and 8,000,757.5 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 | 16,001,515 | |
| -1 | -16,001,515 |
Now, we try dividing 16,001,515 by 3:
16,001,515 ÷ 3 = 5,333,838.3333
If the quotient is a whole number, then 3 and 5,333,838.3333 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 | 16,001,515 | |
| -1 | -16,001,515 |
Let's try dividing by 4:
16,001,515 ÷ 4 = 4,000,378.75
If the quotient is a whole number, then 4 and 4,000,378.75 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 | 16,001,515 | |
| -1 | 16,001,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 389 | 433 | 1,945 | 2,165 | 7,391 | 8,227 | 36,955 | 41,135 | 168,437 | 842,185 | 3,200,303 | 16,001,515 |
| -1 | -5 | -19 | -95 | -389 | -433 | -1,945 | -2,165 | -7,391 | -8,227 | -36,955 | -41,135 | -168,437 | -842,185 | -3,200,303 | -16,001,515 |
Here are some more numbers to try:
Try the factor calculator