A:
Positive:
1 x 201946855 x 40389377 x 288495535 x 576991277 x 729051385 x 145811939 x 104152083 x 9695
Negative:
-1 x -20194685-5 x -4038937-7 x -2884955-35 x -576991-277 x -72905-1385 x -14581-1939 x -10415-2083 x -9695
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 20,194,685, 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 | 20,194,685 | |
| -1 | -20,194,685 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,194,685.
Example:
1 x 20,194,685 = 20,194,685
and
-1 x -20,194,685 = 20,194,685
Notice both answers equal 20,194,685
With that explanation out of the way, let's continue. Next, we take the number 20,194,685 and divide it by 2:
20,194,685 ÷ 2 = 10,097,342.5
If the quotient is a whole number, then 2 and 10,097,342.5 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 | 20,194,685 | |
| -1 | -20,194,685 |
Now, we try dividing 20,194,685 by 3:
20,194,685 ÷ 3 = 6,731,561.6667
If the quotient is a whole number, then 3 and 6,731,561.6667 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 | 20,194,685 | |
| -1 | -20,194,685 |
Let's try dividing by 4:
20,194,685 ÷ 4 = 5,048,671.25
If the quotient is a whole number, then 4 and 5,048,671.25 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 | 20,194,685 | |
| -1 | 20,194,685 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 277 | 1,385 | 1,939 | 2,083 | 9,695 | 10,415 | 14,581 | 72,905 | 576,991 | 2,884,955 | 4,038,937 | 20,194,685 |
| -1 | -5 | -7 | -35 | -277 | -1,385 | -1,939 | -2,083 | -9,695 | -10,415 | -14,581 | -72,905 | -576,991 | -2,884,955 | -4,038,937 | -20,194,685 |
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