A:
Positive:
1 x 34315455 x 68630913 x 26396531 x 11069565 x 52793131 x 26195155 x 22139169 x 20305403 x 8515655 x 5239845 x 40611703 x 2015
Negative:
-1 x -3431545-5 x -686309-13 x -263965-31 x -110695-65 x -52793-131 x -26195-155 x -22139-169 x -20305-403 x -8515-655 x -5239-845 x -4061-1703 x -2015
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 3,431,545, 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 | 3,431,545 | |
| -1 | -3,431,545 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,431,545.
Example:
1 x 3,431,545 = 3,431,545
and
-1 x -3,431,545 = 3,431,545
Notice both answers equal 3,431,545
With that explanation out of the way, let's continue. Next, we take the number 3,431,545 and divide it by 2:
3,431,545 ÷ 2 = 1,715,772.5
If the quotient is a whole number, then 2 and 1,715,772.5 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 | 3,431,545 | |
| -1 | -3,431,545 |
Now, we try dividing 3,431,545 by 3:
3,431,545 ÷ 3 = 1,143,848.3333
If the quotient is a whole number, then 3 and 1,143,848.3333 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 | 3,431,545 | |
| -1 | -3,431,545 |
Let's try dividing by 4:
3,431,545 ÷ 4 = 857,886.25
If the quotient is a whole number, then 4 and 857,886.25 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 | 3,431,545 | |
| -1 | 3,431,545 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 31 | 65 | 131 | 155 | 169 | 403 | 655 | 845 | 1,703 | 2,015 | 4,061 | 5,239 | 8,515 | 20,305 | 22,139 | 26,195 | 52,793 | 110,695 | 263,965 | 686,309 | 3,431,545 |
| -1 | -5 | -13 | -31 | -65 | -131 | -155 | -169 | -403 | -655 | -845 | -1,703 | -2,015 | -4,061 | -5,239 | -8,515 | -20,305 | -22,139 | -26,195 | -52,793 | -110,695 | -263,965 | -686,309 | -3,431,545 |
Here are some more numbers to try:
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