A:
Positive:
1 x 1888567455 x 377713497 x 2697953511 x 1716879535 x 539590755 x 343375977 x 2452685385 x 490537
Negative:
-1 x -188856745-5 x -37771349-7 x -26979535-11 x -17168795-35 x -5395907-55 x -3433759-77 x -2452685-385 x -490537
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 188,856,745, 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 | 188,856,745 | |
| -1 | -188,856,745 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 188,856,745.
Example:
1 x 188,856,745 = 188,856,745
and
-1 x -188,856,745 = 188,856,745
Notice both answers equal 188,856,745
With that explanation out of the way, let's continue. Next, we take the number 188,856,745 and divide it by 2:
188,856,745 ÷ 2 = 94,428,372.5
If the quotient is a whole number, then 2 and 94,428,372.5 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 | 188,856,745 | |
| -1 | -188,856,745 |
Now, we try dividing 188,856,745 by 3:
188,856,745 ÷ 3 = 62,952,248.3333
If the quotient is a whole number, then 3 and 62,952,248.3333 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 | 188,856,745 | |
| -1 | -188,856,745 |
Let's try dividing by 4:
188,856,745 ÷ 4 = 47,214,186.25
If the quotient is a whole number, then 4 and 47,214,186.25 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 | 188,856,745 | |
| -1 | 188,856,745 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 490,537 | 2,452,685 | 3,433,759 | 5,395,907 | 17,168,795 | 26,979,535 | 37,771,349 | 188,856,745 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -490,537 | -2,452,685 | -3,433,759 | -5,395,907 | -17,168,795 | -26,979,535 | -37,771,349 | -188,856,745 |
Here are some more numbers to try:
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