A:
Positive:
1 x 49911055 x 9982217 x 71301535 x 14260359 x 84595295 x 16919413 x 120852065 x 2417
Negative:
-1 x -4991105-5 x -998221-7 x -713015-35 x -142603-59 x -84595-295 x -16919-413 x -12085-2065 x -2417
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 4,991,105, 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 | 4,991,105 | |
| -1 | -4,991,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 4,991,105.
Example:
1 x 4,991,105 = 4,991,105
and
-1 x -4,991,105 = 4,991,105
Notice both answers equal 4,991,105
With that explanation out of the way, let's continue. Next, we take the number 4,991,105 and divide it by 2:
4,991,105 ÷ 2 = 2,495,552.5
If the quotient is a whole number, then 2 and 2,495,552.5 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 | 4,991,105 | |
| -1 | -4,991,105 |
Now, we try dividing 4,991,105 by 3:
4,991,105 ÷ 3 = 1,663,701.6667
If the quotient is a whole number, then 3 and 1,663,701.6667 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 | 4,991,105 | |
| -1 | -4,991,105 |
Let's try dividing by 4:
4,991,105 ÷ 4 = 1,247,776.25
If the quotient is a whole number, then 4 and 1,247,776.25 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 | 4,991,105 | |
| -1 | 4,991,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 59 | 295 | 413 | 2,065 | 2,417 | 12,085 | 16,919 | 84,595 | 142,603 | 713,015 | 998,221 | 4,991,105 |
| -1 | -5 | -7 | -35 | -59 | -295 | -413 | -2,065 | -2,417 | -12,085 | -16,919 | -84,595 | -142,603 | -713,015 | -998,221 | -4,991,105 |
Here are some more numbers to try:
Try the factor calculator