A:
Positive:
1 x 133228155 x 266456311 x 121116517 x 78369555 x 24223385 x 156739187 x 71245935 x 14249
Negative:
-1 x -13322815-5 x -2664563-11 x -1211165-17 x -783695-55 x -242233-85 x -156739-187 x -71245-935 x -14249
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 13,322,815, 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 | 13,322,815 | |
| -1 | -13,322,815 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,322,815.
Example:
1 x 13,322,815 = 13,322,815
and
-1 x -13,322,815 = 13,322,815
Notice both answers equal 13,322,815
With that explanation out of the way, let's continue. Next, we take the number 13,322,815 and divide it by 2:
13,322,815 ÷ 2 = 6,661,407.5
If the quotient is a whole number, then 2 and 6,661,407.5 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 | 13,322,815 | |
| -1 | -13,322,815 |
Now, we try dividing 13,322,815 by 3:
13,322,815 ÷ 3 = 4,440,938.3333
If the quotient is a whole number, then 3 and 4,440,938.3333 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 | 13,322,815 | |
| -1 | -13,322,815 |
Let's try dividing by 4:
13,322,815 ÷ 4 = 3,330,703.75
If the quotient is a whole number, then 4 and 3,330,703.75 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 | 13,322,815 | |
| -1 | 13,322,815 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 17 | 55 | 85 | 187 | 935 | 14,249 | 71,245 | 156,739 | 242,233 | 783,695 | 1,211,165 | 2,664,563 | 13,322,815 |
| -1 | -5 | -11 | -17 | -55 | -85 | -187 | -935 | -14,249 | -71,245 | -156,739 | -242,233 | -783,695 | -1,211,165 | -2,664,563 | -13,322,815 |
Here are some more numbers to try:
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