A:
Positive:
1 x 1233331455 x 2466662913 x 948716565 x 1897433571 x 2159952855 x 431993323 x 371157423 x 16615
Negative:
-1 x -123333145-5 x -24666629-13 x -9487165-65 x -1897433-571 x -215995-2855 x -43199-3323 x -37115-7423 x -16615
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 123,333,145, 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 | 123,333,145 | |
| -1 | -123,333,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 123,333,145.
Example:
1 x 123,333,145 = 123,333,145
and
-1 x -123,333,145 = 123,333,145
Notice both answers equal 123,333,145
With that explanation out of the way, let's continue. Next, we take the number 123,333,145 and divide it by 2:
123,333,145 ÷ 2 = 61,666,572.5
If the quotient is a whole number, then 2 and 61,666,572.5 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 | 123,333,145 | |
| -1 | -123,333,145 |
Now, we try dividing 123,333,145 by 3:
123,333,145 ÷ 3 = 41,111,048.3333
If the quotient is a whole number, then 3 and 41,111,048.3333 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 | 123,333,145 | |
| -1 | -123,333,145 |
Let's try dividing by 4:
123,333,145 ÷ 4 = 30,833,286.25
If the quotient is a whole number, then 4 and 30,833,286.25 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 | 123,333,145 | |
| -1 | 123,333,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 571 | 2,855 | 3,323 | 7,423 | 16,615 | 37,115 | 43,199 | 215,995 | 1,897,433 | 9,487,165 | 24,666,629 | 123,333,145 |
| -1 | -5 | -13 | -65 | -571 | -2,855 | -3,323 | -7,423 | -16,615 | -37,115 | -43,199 | -215,995 | -1,897,433 | -9,487,165 | -24,666,629 | -123,333,145 |
Here are some more numbers to try:
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