A:
Positive:
1 x 127504937 x 182149917 x 750029109 x 116977119 x 107147763 x 16711983 x 129711853 x 6881
Negative:
-1 x -12750493-7 x -1821499-17 x -750029-109 x -116977-119 x -107147-763 x -16711-983 x -12971-1853 x -6881
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 12,750,493, 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 | 12,750,493 | |
| -1 | -12,750,493 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,750,493.
Example:
1 x 12,750,493 = 12,750,493
and
-1 x -12,750,493 = 12,750,493
Notice both answers equal 12,750,493
With that explanation out of the way, let's continue. Next, we take the number 12,750,493 and divide it by 2:
12,750,493 ÷ 2 = 6,375,246.5
If the quotient is a whole number, then 2 and 6,375,246.5 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 | 12,750,493 | |
| -1 | -12,750,493 |
Now, we try dividing 12,750,493 by 3:
12,750,493 ÷ 3 = 4,250,164.3333
If the quotient is a whole number, then 3 and 4,250,164.3333 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 | 12,750,493 | |
| -1 | -12,750,493 |
Let's try dividing by 4:
12,750,493 ÷ 4 = 3,187,623.25
If the quotient is a whole number, then 4 and 3,187,623.25 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 | 12,750,493 | |
| -1 | 12,750,493 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 109 | 119 | 763 | 983 | 1,853 | 6,881 | 12,971 | 16,711 | 107,147 | 116,977 | 750,029 | 1,821,499 | 12,750,493 |
| -1 | -7 | -17 | -109 | -119 | -763 | -983 | -1,853 | -6,881 | -12,971 | -16,711 | -107,147 | -116,977 | -750,029 | -1,821,499 | -12,750,493 |
Here are some more numbers to try:
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