A:
Positive:
1 x 1216297317 x 71546937 x 32872961 x 199393317 x 38369629 x 193371037 x 117292257 x 5389
Negative:
-1 x -12162973-17 x -715469-37 x -328729-61 x -199393-317 x -38369-629 x -19337-1037 x -11729-2257 x -5389
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 12,162,973, 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 | 12,162,973 | |
| -1 | -12,162,973 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,162,973.
Example:
1 x 12,162,973 = 12,162,973
and
-1 x -12,162,973 = 12,162,973
Notice both answers equal 12,162,973
With that explanation out of the way, let's continue. Next, we take the number 12,162,973 and divide it by 2:
12,162,973 ÷ 2 = 6,081,486.5
If the quotient is a whole number, then 2 and 6,081,486.5 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 | 12,162,973 | |
| -1 | -12,162,973 |
Now, we try dividing 12,162,973 by 3:
12,162,973 ÷ 3 = 4,054,324.3333
If the quotient is a whole number, then 3 and 4,054,324.3333 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 | 12,162,973 | |
| -1 | -12,162,973 |
Let's try dividing by 4:
12,162,973 ÷ 4 = 3,040,743.25
If the quotient is a whole number, then 4 and 3,040,743.25 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 | 12,162,973 | |
| -1 | 12,162,973 |
If you did it right, you will end up with this table:
| 1 | 17 | 37 | 61 | 317 | 629 | 1,037 | 2,257 | 5,389 | 11,729 | 19,337 | 38,369 | 199,393 | 328,729 | 715,469 | 12,162,973 |
| -1 | -17 | -37 | -61 | -317 | -629 | -1,037 | -2,257 | -5,389 | -11,729 | -19,337 | -38,369 | -199,393 | -328,729 | -715,469 | -12,162,973 |
Here are some more numbers to try:
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