A:
Positive:
1 x 108207055 x 21641417 x 154581531 x 34905535 x 309163155 x 69811217 x 498651085 x 9973
Negative:
-1 x -10820705-5 x -2164141-7 x -1545815-31 x -349055-35 x -309163-155 x -69811-217 x -49865-1085 x -9973
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 10,820,705, 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 | 10,820,705 | |
| -1 | -10,820,705 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 10,820,705.
Example:
1 x 10,820,705 = 10,820,705
and
-1 x -10,820,705 = 10,820,705
Notice both answers equal 10,820,705
With that explanation out of the way, let's continue. Next, we take the number 10,820,705 and divide it by 2:
10,820,705 ÷ 2 = 5,410,352.5
If the quotient is a whole number, then 2 and 5,410,352.5 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 | 10,820,705 | |
| -1 | -10,820,705 |
Now, we try dividing 10,820,705 by 3:
10,820,705 ÷ 3 = 3,606,901.6667
If the quotient is a whole number, then 3 and 3,606,901.6667 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 | 10,820,705 | |
| -1 | -10,820,705 |
Let's try dividing by 4:
10,820,705 ÷ 4 = 2,705,176.25
If the quotient is a whole number, then 4 and 2,705,176.25 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 | 10,820,705 | |
| -1 | 10,820,705 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 31 | 35 | 155 | 217 | 1,085 | 9,973 | 49,865 | 69,811 | 309,163 | 349,055 | 1,545,815 | 2,164,141 | 10,820,705 |
| -1 | -5 | -7 | -31 | -35 | -155 | -217 | -1,085 | -9,973 | -49,865 | -69,811 | -309,163 | -349,055 | -1,545,815 | -2,164,141 | -10,820,705 |
Here are some more numbers to try:
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