A:
Positive:
1 x 52111555 x 104223129 x 17969583 x 62785145 x 35939415 x 12557433 x 120352165 x 2407
Negative:
-1 x -5211155-5 x -1042231-29 x -179695-83 x -62785-145 x -35939-415 x -12557-433 x -12035-2165 x -2407
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 5,211,155, 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 | 5,211,155 | |
| -1 | -5,211,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 5,211,155.
Example:
1 x 5,211,155 = 5,211,155
and
-1 x -5,211,155 = 5,211,155
Notice both answers equal 5,211,155
With that explanation out of the way, let's continue. Next, we take the number 5,211,155 and divide it by 2:
5,211,155 ÷ 2 = 2,605,577.5
If the quotient is a whole number, then 2 and 2,605,577.5 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 | 5,211,155 | |
| -1 | -5,211,155 |
Now, we try dividing 5,211,155 by 3:
5,211,155 ÷ 3 = 1,737,051.6667
If the quotient is a whole number, then 3 and 1,737,051.6667 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 | 5,211,155 | |
| -1 | -5,211,155 |
Let's try dividing by 4:
5,211,155 ÷ 4 = 1,302,788.75
If the quotient is a whole number, then 4 and 1,302,788.75 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 | 5,211,155 | |
| -1 | 5,211,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 83 | 145 | 415 | 433 | 2,165 | 2,407 | 12,035 | 12,557 | 35,939 | 62,785 | 179,695 | 1,042,231 | 5,211,155 |
| -1 | -5 | -29 | -83 | -145 | -415 | -433 | -2,165 | -2,407 | -12,035 | -12,557 | -35,939 | -62,785 | -179,695 | -1,042,231 | -5,211,155 |
Here are some more numbers to try:
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