A:
Positive:
1 x 2074625311 x 188602323 x 90201143 x 482471253 x 82001473 x 43861989 x 209771907 x 10879
Negative:
-1 x -20746253-11 x -1886023-23 x -902011-43 x -482471-253 x -82001-473 x -43861-989 x -20977-1907 x -10879
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 20,746,253, 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 | 20,746,253 | |
| -1 | -20,746,253 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,746,253.
Example:
1 x 20,746,253 = 20,746,253
and
-1 x -20,746,253 = 20,746,253
Notice both answers equal 20,746,253
With that explanation out of the way, let's continue. Next, we take the number 20,746,253 and divide it by 2:
20,746,253 ÷ 2 = 10,373,126.5
If the quotient is a whole number, then 2 and 10,373,126.5 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 | 20,746,253 | |
| -1 | -20,746,253 |
Now, we try dividing 20,746,253 by 3:
20,746,253 ÷ 3 = 6,915,417.6667
If the quotient is a whole number, then 3 and 6,915,417.6667 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 | 20,746,253 | |
| -1 | -20,746,253 |
Let's try dividing by 4:
20,746,253 ÷ 4 = 5,186,563.25
If the quotient is a whole number, then 4 and 5,186,563.25 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 | 20,746,253 | |
| -1 | 20,746,253 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 43 | 253 | 473 | 989 | 1,907 | 10,879 | 20,977 | 43,861 | 82,001 | 482,471 | 902,011 | 1,886,023 | 20,746,253 |
| -1 | -11 | -23 | -43 | -253 | -473 | -989 | -1,907 | -10,879 | -20,977 | -43,861 | -82,001 | -482,471 | -902,011 | -1,886,023 | -20,746,253 |
Here are some more numbers to try:
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