A:
Positive:
1 x 31007837 x 44296917 x 18239971 x 43673119 x 26057367 x 8449497 x 62391207 x 2569
Negative:
-1 x -3100783-7 x -442969-17 x -182399-71 x -43673-119 x -26057-367 x -8449-497 x -6239-1207 x -2569
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 3,100,783, 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 | 3,100,783 | |
| -1 | -3,100,783 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,100,783.
Example:
1 x 3,100,783 = 3,100,783
and
-1 x -3,100,783 = 3,100,783
Notice both answers equal 3,100,783
With that explanation out of the way, let's continue. Next, we take the number 3,100,783 and divide it by 2:
3,100,783 ÷ 2 = 1,550,391.5
If the quotient is a whole number, then 2 and 1,550,391.5 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 | 3,100,783 | |
| -1 | -3,100,783 |
Now, we try dividing 3,100,783 by 3:
3,100,783 ÷ 3 = 1,033,594.3333
If the quotient is a whole number, then 3 and 1,033,594.3333 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 | 3,100,783 | |
| -1 | -3,100,783 |
Let's try dividing by 4:
3,100,783 ÷ 4 = 775,195.75
If the quotient is a whole number, then 4 and 775,195.75 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 | 3,100,783 | |
| -1 | 3,100,783 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 71 | 119 | 367 | 497 | 1,207 | 2,569 | 6,239 | 8,449 | 26,057 | 43,673 | 182,399 | 442,969 | 3,100,783 |
| -1 | -7 | -17 | -71 | -119 | -367 | -497 | -1,207 | -2,569 | -6,239 | -8,449 | -26,057 | -43,673 | -182,399 | -442,969 | -3,100,783 |
Here are some more numbers to try:
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