A:
Positive:
1 x 1510897117 x 88876319 x 79520929 x 520999323 x 46777493 x 30647551 x 274211613 x 9367
Negative:
-1 x -15108971-17 x -888763-19 x -795209-29 x -520999-323 x -46777-493 x -30647-551 x -27421-1613 x -9367
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 15,108,971, 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 | 15,108,971 | |
| -1 | -15,108,971 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,108,971.
Example:
1 x 15,108,971 = 15,108,971
and
-1 x -15,108,971 = 15,108,971
Notice both answers equal 15,108,971
With that explanation out of the way, let's continue. Next, we take the number 15,108,971 and divide it by 2:
15,108,971 ÷ 2 = 7,554,485.5
If the quotient is a whole number, then 2 and 7,554,485.5 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 | 15,108,971 | |
| -1 | -15,108,971 |
Now, we try dividing 15,108,971 by 3:
15,108,971 ÷ 3 = 5,036,323.6667
If the quotient is a whole number, then 3 and 5,036,323.6667 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 | 15,108,971 | |
| -1 | -15,108,971 |
Let's try dividing by 4:
15,108,971 ÷ 4 = 3,777,242.75
If the quotient is a whole number, then 4 and 3,777,242.75 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 | 15,108,971 | |
| -1 | 15,108,971 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 29 | 323 | 493 | 551 | 1,613 | 9,367 | 27,421 | 30,647 | 46,777 | 520,999 | 795,209 | 888,763 | 15,108,971 |
| -1 | -17 | -19 | -29 | -323 | -493 | -551 | -1,613 | -9,367 | -27,421 | -30,647 | -46,777 | -520,999 | -795,209 | -888,763 | -15,108,971 |
Here are some more numbers to try:
Try the factor calculator