A:
Positive:
1 x 12679455 x 2535897 x 18113517 x 7458535 x 3622785 x 14917119 x 10655595 x 2131
Negative:
-1 x -1267945-5 x -253589-7 x -181135-17 x -74585-35 x -36227-85 x -14917-119 x -10655-595 x -2131
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 1,267,945, 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 | 1,267,945 | |
| -1 | -1,267,945 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,267,945.
Example:
1 x 1,267,945 = 1,267,945
and
-1 x -1,267,945 = 1,267,945
Notice both answers equal 1,267,945
With that explanation out of the way, let's continue. Next, we take the number 1,267,945 and divide it by 2:
1,267,945 ÷ 2 = 633,972.5
If the quotient is a whole number, then 2 and 633,972.5 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 | 1,267,945 | |
| -1 | -1,267,945 |
Now, we try dividing 1,267,945 by 3:
1,267,945 ÷ 3 = 422,648.3333
If the quotient is a whole number, then 3 and 422,648.3333 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 | 1,267,945 | |
| -1 | -1,267,945 |
Let's try dividing by 4:
1,267,945 ÷ 4 = 316,986.25
If the quotient is a whole number, then 4 and 316,986.25 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 | 1,267,945 | |
| -1 | 1,267,945 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 17 | 35 | 85 | 119 | 595 | 2,131 | 10,655 | 14,917 | 36,227 | 74,585 | 181,135 | 253,589 | 1,267,945 |
| -1 | -5 | -7 | -17 | -35 | -85 | -119 | -595 | -2,131 | -10,655 | -14,917 | -36,227 | -74,585 | -181,135 | -253,589 | -1,267,945 |
Here are some more numbers to try:
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