A:
Positive:
1 x 19949737723 x 867379937 x 5391821359 x 555703653 x 305509851 x 2344278257 x 2416113283 x 15019
Negative:
-1 x -199497377-23 x -8673799-37 x -5391821-359 x -555703-653 x -305509-851 x -234427-8257 x -24161-13283 x -15019
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 199,497,377, 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 | 199,497,377 | |
| -1 | -199,497,377 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 199,497,377.
Example:
1 x 199,497,377 = 199,497,377
and
-1 x -199,497,377 = 199,497,377
Notice both answers equal 199,497,377
With that explanation out of the way, let's continue. Next, we take the number 199,497,377 and divide it by 2:
199,497,377 ÷ 2 = 99,748,688.5
If the quotient is a whole number, then 2 and 99,748,688.5 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 | 199,497,377 | |
| -1 | -199,497,377 |
Now, we try dividing 199,497,377 by 3:
199,497,377 ÷ 3 = 66,499,125.6667
If the quotient is a whole number, then 3 and 66,499,125.6667 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 | 199,497,377 | |
| -1 | -199,497,377 |
Let's try dividing by 4:
199,497,377 ÷ 4 = 49,874,344.25
If the quotient is a whole number, then 4 and 49,874,344.25 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 | 199,497,377 | |
| -1 | 199,497,377 |
If you did it right, you will end up with this table:
| 1 | 23 | 37 | 359 | 653 | 851 | 8,257 | 13,283 | 15,019 | 24,161 | 234,427 | 305,509 | 555,703 | 5,391,821 | 8,673,799 | 199,497,377 |
| -1 | -23 | -37 | -359 | -653 | -851 | -8,257 | -13,283 | -15,019 | -24,161 | -234,427 | -305,509 | -555,703 | -5,391,821 | -8,673,799 | -199,497,377 |
Here are some more numbers to try:
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