A:
Positive:
1 x 1516700911 x 137881913 x 116669317 x 892177143 x 106063187 x 81107221 x 68629289 x 52481367 x 413272431 x 62393179 x 47713757 x 4037
Negative:
-1 x -15167009-11 x -1378819-13 x -1166693-17 x -892177-143 x -106063-187 x -81107-221 x -68629-289 x -52481-367 x -41327-2431 x -6239-3179 x -4771-3757 x -4037
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 15,167,009, 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 | 15,167,009 | |
| -1 | -15,167,009 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,167,009.
Example:
1 x 15,167,009 = 15,167,009
and
-1 x -15,167,009 = 15,167,009
Notice both answers equal 15,167,009
With that explanation out of the way, let's continue. Next, we take the number 15,167,009 and divide it by 2:
15,167,009 ÷ 2 = 7,583,504.5
If the quotient is a whole number, then 2 and 7,583,504.5 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 | 15,167,009 | |
| -1 | -15,167,009 |
Now, we try dividing 15,167,009 by 3:
15,167,009 ÷ 3 = 5,055,669.6667
If the quotient is a whole number, then 3 and 5,055,669.6667 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 | 15,167,009 | |
| -1 | -15,167,009 |
Let's try dividing by 4:
15,167,009 ÷ 4 = 3,791,752.25
If the quotient is a whole number, then 4 and 3,791,752.25 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 | 15,167,009 | |
| -1 | 15,167,009 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 17 | 143 | 187 | 221 | 289 | 367 | 2,431 | 3,179 | 3,757 | 4,037 | 4,771 | 6,239 | 41,327 | 52,481 | 68,629 | 81,107 | 106,063 | 892,177 | 1,166,693 | 1,378,819 | 15,167,009 |
| -1 | -11 | -13 | -17 | -143 | -187 | -221 | -289 | -367 | -2,431 | -3,179 | -3,757 | -4,037 | -4,771 | -6,239 | -41,327 | -52,481 | -68,629 | -81,107 | -106,063 | -892,177 | -1,166,693 | -1,378,819 | -15,167,009 |
Here are some more numbers to try:
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