A:
Positive:
1 x 1279006311 x 116273313 x 98385147 x 272129121 x 105703143 x 89441173 x 73931517 x 24739611 x 209331573 x 81311903 x 67212249 x 5687
Negative:
-1 x -12790063-11 x -1162733-13 x -983851-47 x -272129-121 x -105703-143 x -89441-173 x -73931-517 x -24739-611 x -20933-1573 x -8131-1903 x -6721-2249 x -5687
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 12,790,063, 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 | 12,790,063 | |
| -1 | -12,790,063 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,790,063.
Example:
1 x 12,790,063 = 12,790,063
and
-1 x -12,790,063 = 12,790,063
Notice both answers equal 12,790,063
With that explanation out of the way, let's continue. Next, we take the number 12,790,063 and divide it by 2:
12,790,063 ÷ 2 = 6,395,031.5
If the quotient is a whole number, then 2 and 6,395,031.5 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 | 12,790,063 | |
| -1 | -12,790,063 |
Now, we try dividing 12,790,063 by 3:
12,790,063 ÷ 3 = 4,263,354.3333
If the quotient is a whole number, then 3 and 4,263,354.3333 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 | 12,790,063 | |
| -1 | -12,790,063 |
Let's try dividing by 4:
12,790,063 ÷ 4 = 3,197,515.75
If the quotient is a whole number, then 4 and 3,197,515.75 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 | 12,790,063 | |
| -1 | 12,790,063 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 47 | 121 | 143 | 173 | 517 | 611 | 1,573 | 1,903 | 2,249 | 5,687 | 6,721 | 8,131 | 20,933 | 24,739 | 73,931 | 89,441 | 105,703 | 272,129 | 983,851 | 1,162,733 | 12,790,063 |
| -1 | -11 | -13 | -47 | -121 | -143 | -173 | -517 | -611 | -1,573 | -1,903 | -2,249 | -5,687 | -6,721 | -8,131 | -20,933 | -24,739 | -73,931 | -89,441 | -105,703 | -272,129 | -983,851 | -1,162,733 | -12,790,063 |
Here are some more numbers to try:
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