A:
Positive:
1 x 8747861755 x 17495723525 x 349914471619 x 5403258095 x 10806521613 x 40475
Negative:
-1 x -874786175-5 x -174957235-25 x -34991447-1619 x -540325-8095 x -108065-21613 x -40475
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 874,786,175, 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 | 874,786,175 | |
| -1 | -874,786,175 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 874,786,175.
Example:
1 x 874,786,175 = 874,786,175
and
-1 x -874,786,175 = 874,786,175
Notice both answers equal 874,786,175
With that explanation out of the way, let's continue. Next, we take the number 874,786,175 and divide it by 2:
874,786,175 ÷ 2 = 437,393,087.5
If the quotient is a whole number, then 2 and 437,393,087.5 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 | 874,786,175 | |
| -1 | -874,786,175 |
Now, we try dividing 874,786,175 by 3:
874,786,175 ÷ 3 = 291,595,391.6667
If the quotient is a whole number, then 3 and 291,595,391.6667 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 | 874,786,175 | |
| -1 | -874,786,175 |
Let's try dividing by 4:
874,786,175 ÷ 4 = 218,696,543.75
If the quotient is a whole number, then 4 and 218,696,543.75 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 | 874,786,175 | |
| -1 | 874,786,175 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 1,619 | 8,095 | 21,613 | 40,475 | 108,065 | 540,325 | 34,991,447 | 174,957,235 | 874,786,175 |
| -1 | -5 | -25 | -1,619 | -8,095 | -21,613 | -40,475 | -108,065 | -540,325 | -34,991,447 | -174,957,235 | -874,786,175 |
Here are some more numbers to try:
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