A:
Positive:
1 x 18864381129 x 650495983 x 2272817181 x 1042231433 x 4356672407 x 783735249 x 3593912557 x 15023
Negative:
-1 x -188643811-29 x -6504959-83 x -2272817-181 x -1042231-433 x -435667-2407 x -78373-5249 x -35939-12557 x -15023
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 188,643,811, 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 | 188,643,811 | |
| -1 | -188,643,811 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 188,643,811.
Example:
1 x 188,643,811 = 188,643,811
and
-1 x -188,643,811 = 188,643,811
Notice both answers equal 188,643,811
With that explanation out of the way, let's continue. Next, we take the number 188,643,811 and divide it by 2:
188,643,811 ÷ 2 = 94,321,905.5
If the quotient is a whole number, then 2 and 94,321,905.5 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 | 188,643,811 | |
| -1 | -188,643,811 |
Now, we try dividing 188,643,811 by 3:
188,643,811 ÷ 3 = 62,881,270.3333
If the quotient is a whole number, then 3 and 62,881,270.3333 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 | 188,643,811 | |
| -1 | -188,643,811 |
Let's try dividing by 4:
188,643,811 ÷ 4 = 47,160,952.75
If the quotient is a whole number, then 4 and 47,160,952.75 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 | 188,643,811 | |
| -1 | 188,643,811 |
If you did it right, you will end up with this table:
| 1 | 29 | 83 | 181 | 433 | 2,407 | 5,249 | 12,557 | 15,023 | 35,939 | 78,373 | 435,667 | 1,042,231 | 2,272,817 | 6,504,959 | 188,643,811 |
| -1 | -29 | -83 | -181 | -433 | -2,407 | -5,249 | -12,557 | -15,023 | -35,939 | -78,373 | -435,667 | -1,042,231 | -2,272,817 | -6,504,959 | -188,643,811 |
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