A:
Positive:
1 x 135123177 x 193033113 x 103940983 x 16279991 x 148487581 x 232571079 x 125231789 x 7553
Negative:
-1 x -13512317-7 x -1930331-13 x -1039409-83 x -162799-91 x -148487-581 x -23257-1079 x -12523-1789 x -7553
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 13,512,317, 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 | 13,512,317 | |
| -1 | -13,512,317 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,512,317.
Example:
1 x 13,512,317 = 13,512,317
and
-1 x -13,512,317 = 13,512,317
Notice both answers equal 13,512,317
With that explanation out of the way, let's continue. Next, we take the number 13,512,317 and divide it by 2:
13,512,317 ÷ 2 = 6,756,158.5
If the quotient is a whole number, then 2 and 6,756,158.5 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 | 13,512,317 | |
| -1 | -13,512,317 |
Now, we try dividing 13,512,317 by 3:
13,512,317 ÷ 3 = 4,504,105.6667
If the quotient is a whole number, then 3 and 4,504,105.6667 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 | 13,512,317 | |
| -1 | -13,512,317 |
Let's try dividing by 4:
13,512,317 ÷ 4 = 3,378,079.25
If the quotient is a whole number, then 4 and 3,378,079.25 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 | 13,512,317 | |
| -1 | 13,512,317 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 83 | 91 | 581 | 1,079 | 1,789 | 7,553 | 12,523 | 23,257 | 148,487 | 162,799 | 1,039,409 | 1,930,331 | 13,512,317 |
| -1 | -7 | -13 | -83 | -91 | -581 | -1,079 | -1,789 | -7,553 | -12,523 | -23,257 | -148,487 | -162,799 | -1,039,409 | -1,930,331 | -13,512,317 |
Here are some more numbers to try:
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