A:
Positive:
1 x 121562637 x 173660949 x 24808761 x 19928383 x 146461343 x 35441427 x 28469581 x 209232401 x 50632989 x 4067
Negative:
-1 x -12156263-7 x -1736609-49 x -248087-61 x -199283-83 x -146461-343 x -35441-427 x -28469-581 x -20923-2401 x -5063-2989 x -4067
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 12,156,263, 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 | 12,156,263 | |
| -1 | -12,156,263 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,156,263.
Example:
1 x 12,156,263 = 12,156,263
and
-1 x -12,156,263 = 12,156,263
Notice both answers equal 12,156,263
With that explanation out of the way, let's continue. Next, we take the number 12,156,263 and divide it by 2:
12,156,263 ÷ 2 = 6,078,131.5
If the quotient is a whole number, then 2 and 6,078,131.5 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 | 12,156,263 | |
| -1 | -12,156,263 |
Now, we try dividing 12,156,263 by 3:
12,156,263 ÷ 3 = 4,052,087.6667
If the quotient is a whole number, then 3 and 4,052,087.6667 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 | 12,156,263 | |
| -1 | -12,156,263 |
Let's try dividing by 4:
12,156,263 ÷ 4 = 3,039,065.75
If the quotient is a whole number, then 4 and 3,039,065.75 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 | 12,156,263 | |
| -1 | 12,156,263 |
If you did it right, you will end up with this table:
| 1 | 7 | 49 | 61 | 83 | 343 | 427 | 581 | 2,401 | 2,989 | 4,067 | 5,063 | 20,923 | 28,469 | 35,441 | 146,461 | 199,283 | 248,087 | 1,736,609 | 12,156,263 |
| -1 | -7 | -49 | -61 | -83 | -343 | -427 | -581 | -2,401 | -2,989 | -4,067 | -5,063 | -20,923 | -28,469 | -35,441 | -146,461 | -199,283 | -248,087 | -1,736,609 | -12,156,263 |
Here are some more numbers to try:
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