A:
Positive:
1 x 82716055 x 165432117 x 48656523 x 35963585 x 97313115 x 71927391 x 211551955 x 4231
Negative:
-1 x -8271605-5 x -1654321-17 x -486565-23 x -359635-85 x -97313-115 x -71927-391 x -21155-1955 x -4231
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 8,271,605, 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 | 8,271,605 | |
| -1 | -8,271,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,271,605.
Example:
1 x 8,271,605 = 8,271,605
and
-1 x -8,271,605 = 8,271,605
Notice both answers equal 8,271,605
With that explanation out of the way, let's continue. Next, we take the number 8,271,605 and divide it by 2:
8,271,605 ÷ 2 = 4,135,802.5
If the quotient is a whole number, then 2 and 4,135,802.5 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 | 8,271,605 | |
| -1 | -8,271,605 |
Now, we try dividing 8,271,605 by 3:
8,271,605 ÷ 3 = 2,757,201.6667
If the quotient is a whole number, then 3 and 2,757,201.6667 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 | 8,271,605 | |
| -1 | -8,271,605 |
Let's try dividing by 4:
8,271,605 ÷ 4 = 2,067,901.25
If the quotient is a whole number, then 4 and 2,067,901.25 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 | 8,271,605 | |
| -1 | 8,271,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 23 | 85 | 115 | 391 | 1,955 | 4,231 | 21,155 | 71,927 | 97,313 | 359,635 | 486,565 | 1,654,321 | 8,271,605 |
| -1 | -5 | -17 | -23 | -85 | -115 | -391 | -1,955 | -4,231 | -21,155 | -71,927 | -97,313 | -359,635 | -486,565 | -1,654,321 | -8,271,605 |
Here are some more numbers to try:
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