A:
Positive:
1 x 202700055 x 40540017 x 289571535 x 579143347 x 584151669 x 121451735 x 116832429 x 8345
Negative:
-1 x -20270005-5 x -4054001-7 x -2895715-35 x -579143-347 x -58415-1669 x -12145-1735 x -11683-2429 x -8345
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 20,270,005, 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 | 20,270,005 | |
| -1 | -20,270,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,270,005.
Example:
1 x 20,270,005 = 20,270,005
and
-1 x -20,270,005 = 20,270,005
Notice both answers equal 20,270,005
With that explanation out of the way, let's continue. Next, we take the number 20,270,005 and divide it by 2:
20,270,005 ÷ 2 = 10,135,002.5
If the quotient is a whole number, then 2 and 10,135,002.5 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 | 20,270,005 | |
| -1 | -20,270,005 |
Now, we try dividing 20,270,005 by 3:
20,270,005 ÷ 3 = 6,756,668.3333
If the quotient is a whole number, then 3 and 6,756,668.3333 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 | 20,270,005 | |
| -1 | -20,270,005 |
Let's try dividing by 4:
20,270,005 ÷ 4 = 5,067,501.25
If the quotient is a whole number, then 4 and 5,067,501.25 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 | 20,270,005 | |
| -1 | 20,270,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 347 | 1,669 | 1,735 | 2,429 | 8,345 | 11,683 | 12,145 | 58,415 | 579,143 | 2,895,715 | 4,054,001 | 20,270,005 |
| -1 | -5 | -7 | -35 | -347 | -1,669 | -1,735 | -2,429 | -8,345 | -11,683 | -12,145 | -58,415 | -579,143 | -2,895,715 | -4,054,001 | -20,270,005 |
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