A:
Positive:
1 x 31077837 x 44396923 x 13512197 x 32039161 x 19303199 x 15617679 x 45771393 x 2231
Negative:
-1 x -3107783-7 x -443969-23 x -135121-97 x -32039-161 x -19303-199 x -15617-679 x -4577-1393 x -2231
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 3,107,783, 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 | 3,107,783 | |
| -1 | -3,107,783 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,107,783.
Example:
1 x 3,107,783 = 3,107,783
and
-1 x -3,107,783 = 3,107,783
Notice both answers equal 3,107,783
With that explanation out of the way, let's continue. Next, we take the number 3,107,783 and divide it by 2:
3,107,783 ÷ 2 = 1,553,891.5
If the quotient is a whole number, then 2 and 1,553,891.5 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 | 3,107,783 | |
| -1 | -3,107,783 |
Now, we try dividing 3,107,783 by 3:
3,107,783 ÷ 3 = 1,035,927.6667
If the quotient is a whole number, then 3 and 1,035,927.6667 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 | 3,107,783 | |
| -1 | -3,107,783 |
Let's try dividing by 4:
3,107,783 ÷ 4 = 776,945.75
If the quotient is a whole number, then 4 and 776,945.75 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 | 3,107,783 | |
| -1 | 3,107,783 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 97 | 161 | 199 | 679 | 1,393 | 2,231 | 4,577 | 15,617 | 19,303 | 32,039 | 135,121 | 443,969 | 3,107,783 |
| -1 | -7 | -23 | -97 | -161 | -199 | -679 | -1,393 | -2,231 | -4,577 | -15,617 | -19,303 | -32,039 | -135,121 | -443,969 | -3,107,783 |
Here are some more numbers to try:
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