A:
Positive:
1 x 31246455 x 62492919 x 16445531 x 10079595 x 32891155 x 20159589 x 53051061 x 2945
Negative:
-1 x -3124645-5 x -624929-19 x -164455-31 x -100795-95 x -32891-155 x -20159-589 x -5305-1061 x -2945
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 3,124,645, 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 | 3,124,645 | |
| -1 | -3,124,645 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,124,645.
Example:
1 x 3,124,645 = 3,124,645
and
-1 x -3,124,645 = 3,124,645
Notice both answers equal 3,124,645
With that explanation out of the way, let's continue. Next, we take the number 3,124,645 and divide it by 2:
3,124,645 ÷ 2 = 1,562,322.5
If the quotient is a whole number, then 2 and 1,562,322.5 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 | 3,124,645 | |
| -1 | -3,124,645 |
Now, we try dividing 3,124,645 by 3:
3,124,645 ÷ 3 = 1,041,548.3333
If the quotient is a whole number, then 3 and 1,041,548.3333 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 | 3,124,645 | |
| -1 | -3,124,645 |
Let's try dividing by 4:
3,124,645 ÷ 4 = 781,161.25
If the quotient is a whole number, then 4 and 781,161.25 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 | 3,124,645 | |
| -1 | 3,124,645 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 31 | 95 | 155 | 589 | 1,061 | 2,945 | 5,305 | 20,159 | 32,891 | 100,795 | 164,455 | 624,929 | 3,124,645 |
| -1 | -5 | -19 | -31 | -95 | -155 | -589 | -1,061 | -2,945 | -5,305 | -20,159 | -32,891 | -100,795 | -164,455 | -624,929 | -3,124,645 |
Here are some more numbers to try:
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