A:
Positive:
1 x 12738117 x 18197311 x 11580171 x 1794177 x 16543233 x 5467497 x 2563781 x 1631
Negative:
-1 x -1273811-7 x -181973-11 x -115801-71 x -17941-77 x -16543-233 x -5467-497 x -2563-781 x -1631
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 1,273,811, 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 | 1,273,811 | |
| -1 | -1,273,811 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,273,811.
Example:
1 x 1,273,811 = 1,273,811
and
-1 x -1,273,811 = 1,273,811
Notice both answers equal 1,273,811
With that explanation out of the way, let's continue. Next, we take the number 1,273,811 and divide it by 2:
1,273,811 ÷ 2 = 636,905.5
If the quotient is a whole number, then 2 and 636,905.5 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 | 1,273,811 | |
| -1 | -1,273,811 |
Now, we try dividing 1,273,811 by 3:
1,273,811 ÷ 3 = 424,603.6667
If the quotient is a whole number, then 3 and 424,603.6667 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 | 1,273,811 | |
| -1 | -1,273,811 |
Let's try dividing by 4:
1,273,811 ÷ 4 = 318,452.75
If the quotient is a whole number, then 4 and 318,452.75 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 | 1,273,811 | |
| -1 | 1,273,811 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 71 | 77 | 233 | 497 | 781 | 1,631 | 2,563 | 5,467 | 16,543 | 17,941 | 115,801 | 181,973 | 1,273,811 |
| -1 | -7 | -11 | -71 | -77 | -233 | -497 | -781 | -1,631 | -2,563 | -5,467 | -16,543 | -17,941 | -115,801 | -181,973 | -1,273,811 |
Here are some more numbers to try:
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