A:
Positive:
1 x 125442055 x 250884183 x 151135167 x 75115181 x 69305415 x 30227835 x 15023905 x 13861
Negative:
-1 x -12544205-5 x -2508841-83 x -151135-167 x -75115-181 x -69305-415 x -30227-835 x -15023-905 x -13861
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 12,544,205, 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 | 12,544,205 | |
| -1 | -12,544,205 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,544,205.
Example:
1 x 12,544,205 = 12,544,205
and
-1 x -12,544,205 = 12,544,205
Notice both answers equal 12,544,205
With that explanation out of the way, let's continue. Next, we take the number 12,544,205 and divide it by 2:
12,544,205 ÷ 2 = 6,272,102.5
If the quotient is a whole number, then 2 and 6,272,102.5 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 | 12,544,205 | |
| -1 | -12,544,205 |
Now, we try dividing 12,544,205 by 3:
12,544,205 ÷ 3 = 4,181,401.6667
If the quotient is a whole number, then 3 and 4,181,401.6667 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 | 12,544,205 | |
| -1 | -12,544,205 |
Let's try dividing by 4:
12,544,205 ÷ 4 = 3,136,051.25
If the quotient is a whole number, then 4 and 3,136,051.25 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 | 12,544,205 | |
| -1 | 12,544,205 |
If you did it right, you will end up with this table:
| 1 | 5 | 83 | 167 | 181 | 415 | 835 | 905 | 13,861 | 15,023 | 30,227 | 69,305 | 75,115 | 151,135 | 2,508,841 | 12,544,205 |
| -1 | -5 | -83 | -167 | -181 | -415 | -835 | -905 | -13,861 | -15,023 | -30,227 | -69,305 | -75,115 | -151,135 | -2,508,841 | -12,544,205 |
Here are some more numbers to try:
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