A:
Positive:
1 x 133312137 x 190445917 x 78418929 x 459697119 x 112027203 x 65671493 x 270413451 x 3863
Negative:
-1 x -13331213-7 x -1904459-17 x -784189-29 x -459697-119 x -112027-203 x -65671-493 x -27041-3451 x -3863
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 13,331,213, 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 | 13,331,213 | |
| -1 | -13,331,213 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,331,213.
Example:
1 x 13,331,213 = 13,331,213
and
-1 x -13,331,213 = 13,331,213
Notice both answers equal 13,331,213
With that explanation out of the way, let's continue. Next, we take the number 13,331,213 and divide it by 2:
13,331,213 ÷ 2 = 6,665,606.5
If the quotient is a whole number, then 2 and 6,665,606.5 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 | 13,331,213 | |
| -1 | -13,331,213 |
Now, we try dividing 13,331,213 by 3:
13,331,213 ÷ 3 = 4,443,737.6667
If the quotient is a whole number, then 3 and 4,443,737.6667 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 | 13,331,213 | |
| -1 | -13,331,213 |
Let's try dividing by 4:
13,331,213 ÷ 4 = 3,332,803.25
If the quotient is a whole number, then 4 and 3,332,803.25 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 | 13,331,213 | |
| -1 | 13,331,213 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 29 | 119 | 203 | 493 | 3,451 | 3,863 | 27,041 | 65,671 | 112,027 | 459,697 | 784,189 | 1,904,459 | 13,331,213 |
| -1 | -7 | -17 | -29 | -119 | -203 | -493 | -3,451 | -3,863 | -27,041 | -65,671 | -112,027 | -459,697 | -784,189 | -1,904,459 | -13,331,213 |
Here are some more numbers to try:
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