A:
Positive:
1 x 492179323 x 21399129 x 16971747 x 104719157 x 31349667 x 73791081 x 45531363 x 3611
Negative:
-1 x -4921793-23 x -213991-29 x -169717-47 x -104719-157 x -31349-667 x -7379-1081 x -4553-1363 x -3611
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 4,921,793, 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 | 4,921,793 | |
| -1 | -4,921,793 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 4,921,793.
Example:
1 x 4,921,793 = 4,921,793
and
-1 x -4,921,793 = 4,921,793
Notice both answers equal 4,921,793
With that explanation out of the way, let's continue. Next, we take the number 4,921,793 and divide it by 2:
4,921,793 ÷ 2 = 2,460,896.5
If the quotient is a whole number, then 2 and 2,460,896.5 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 | 4,921,793 | |
| -1 | -4,921,793 |
Now, we try dividing 4,921,793 by 3:
4,921,793 ÷ 3 = 1,640,597.6667
If the quotient is a whole number, then 3 and 1,640,597.6667 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 | 4,921,793 | |
| -1 | -4,921,793 |
Let's try dividing by 4:
4,921,793 ÷ 4 = 1,230,448.25
If the quotient is a whole number, then 4 and 1,230,448.25 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 | 4,921,793 | |
| -1 | 4,921,793 |
If you did it right, you will end up with this table:
| 1 | 23 | 29 | 47 | 157 | 667 | 1,081 | 1,363 | 3,611 | 4,553 | 7,379 | 31,349 | 104,719 | 169,717 | 213,991 | 4,921,793 |
| -1 | -23 | -29 | -47 | -157 | -667 | -1,081 | -1,363 | -3,611 | -4,553 | -7,379 | -31,349 | -104,719 | -169,717 | -213,991 | -4,921,793 |
Here are some more numbers to try:
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