A:
Positive:
1 x 828800055 x 1657600113 x 637538565 x 127507767 x 1237015335 x 247403871 x 951554355 x 19031
Negative:
-1 x -82880005-5 x -16576001-13 x -6375385-65 x -1275077-67 x -1237015-335 x -247403-871 x -95155-4355 x -19031
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 82,880,005, 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 | 82,880,005 | |
| -1 | -82,880,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 82,880,005.
Example:
1 x 82,880,005 = 82,880,005
and
-1 x -82,880,005 = 82,880,005
Notice both answers equal 82,880,005
With that explanation out of the way, let's continue. Next, we take the number 82,880,005 and divide it by 2:
82,880,005 ÷ 2 = 41,440,002.5
If the quotient is a whole number, then 2 and 41,440,002.5 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 | 82,880,005 | |
| -1 | -82,880,005 |
Now, we try dividing 82,880,005 by 3:
82,880,005 ÷ 3 = 27,626,668.3333
If the quotient is a whole number, then 3 and 27,626,668.3333 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 | 82,880,005 | |
| -1 | -82,880,005 |
Let's try dividing by 4:
82,880,005 ÷ 4 = 20,720,001.25
If the quotient is a whole number, then 4 and 20,720,001.25 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 | 82,880,005 | |
| -1 | 82,880,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 67 | 335 | 871 | 4,355 | 19,031 | 95,155 | 247,403 | 1,237,015 | 1,275,077 | 6,375,385 | 16,576,001 | 82,880,005 |
| -1 | -5 | -13 | -65 | -67 | -335 | -871 | -4,355 | -19,031 | -95,155 | -247,403 | -1,237,015 | -1,275,077 | -6,375,385 | -16,576,001 | -82,880,005 |
Here are some more numbers to try:
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