A:
Positive:
1 x 1231778455 x 246355697 x 1759683535 x 35193671873 x 657651879 x 655559365 x 131539395 x 13111
Negative:
-1 x -123177845-5 x -24635569-7 x -17596835-35 x -3519367-1873 x -65765-1879 x -65555-9365 x -13153-9395 x -13111
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 123,177,845, 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 | 123,177,845 | |
| -1 | -123,177,845 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 123,177,845.
Example:
1 x 123,177,845 = 123,177,845
and
-1 x -123,177,845 = 123,177,845
Notice both answers equal 123,177,845
With that explanation out of the way, let's continue. Next, we take the number 123,177,845 and divide it by 2:
123,177,845 ÷ 2 = 61,588,922.5
If the quotient is a whole number, then 2 and 61,588,922.5 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 | 123,177,845 | |
| -1 | -123,177,845 |
Now, we try dividing 123,177,845 by 3:
123,177,845 ÷ 3 = 41,059,281.6667
If the quotient is a whole number, then 3 and 41,059,281.6667 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 | 123,177,845 | |
| -1 | -123,177,845 |
Let's try dividing by 4:
123,177,845 ÷ 4 = 30,794,461.25
If the quotient is a whole number, then 4 and 30,794,461.25 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 | 123,177,845 | |
| -1 | 123,177,845 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 1,873 | 1,879 | 9,365 | 9,395 | 13,111 | 13,153 | 65,555 | 65,765 | 3,519,367 | 17,596,835 | 24,635,569 | 123,177,845 |
| -1 | -5 | -7 | -35 | -1,873 | -1,879 | -9,365 | -9,395 | -13,111 | -13,153 | -65,555 | -65,765 | -3,519,367 | -17,596,835 | -24,635,569 | -123,177,845 |
Here are some more numbers to try:
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