A:
Positive:
1 x 46879917 x 66971311 x 42618177 x 60883107 x 43813569 x 8239749 x 62591177 x 3983
Negative:
-1 x -4687991-7 x -669713-11 x -426181-77 x -60883-107 x -43813-569 x -8239-749 x -6259-1177 x -3983
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 4,687,991, 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 | 4,687,991 | |
| -1 | -4,687,991 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 4,687,991.
Example:
1 x 4,687,991 = 4,687,991
and
-1 x -4,687,991 = 4,687,991
Notice both answers equal 4,687,991
With that explanation out of the way, let's continue. Next, we take the number 4,687,991 and divide it by 2:
4,687,991 ÷ 2 = 2,343,995.5
If the quotient is a whole number, then 2 and 2,343,995.5 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 | 4,687,991 | |
| -1 | -4,687,991 |
Now, we try dividing 4,687,991 by 3:
4,687,991 ÷ 3 = 1,562,663.6667
If the quotient is a whole number, then 3 and 1,562,663.6667 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 | 4,687,991 | |
| -1 | -4,687,991 |
Let's try dividing by 4:
4,687,991 ÷ 4 = 1,171,997.75
If the quotient is a whole number, then 4 and 1,171,997.75 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 | 4,687,991 | |
| -1 | 4,687,991 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 107 | 569 | 749 | 1,177 | 3,983 | 6,259 | 8,239 | 43,813 | 60,883 | 426,181 | 669,713 | 4,687,991 |
| -1 | -7 | -11 | -77 | -107 | -569 | -749 | -1,177 | -3,983 | -6,259 | -8,239 | -43,813 | -60,883 | -426,181 | -669,713 | -4,687,991 |
Here are some more numbers to try:
Try the factor calculator