A:
Positive:
1 x 51786242313 x 3983557119 x 27255917247 x 20966091117 x 4636191877 x 27589914521 x 3566321223 x 24401
Negative:
-1 x -517862423-13 x -39835571-19 x -27255917-247 x -2096609-1117 x -463619-1877 x -275899-14521 x -35663-21223 x -24401
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 517,862,423, 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 | 517,862,423 | |
| -1 | -517,862,423 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 517,862,423.
Example:
1 x 517,862,423 = 517,862,423
and
-1 x -517,862,423 = 517,862,423
Notice both answers equal 517,862,423
With that explanation out of the way, let's continue. Next, we take the number 517,862,423 and divide it by 2:
517,862,423 ÷ 2 = 258,931,211.5
If the quotient is a whole number, then 2 and 258,931,211.5 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 | 517,862,423 | |
| -1 | -517,862,423 |
Now, we try dividing 517,862,423 by 3:
517,862,423 ÷ 3 = 172,620,807.6667
If the quotient is a whole number, then 3 and 172,620,807.6667 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 | 517,862,423 | |
| -1 | -517,862,423 |
Let's try dividing by 4:
517,862,423 ÷ 4 = 129,465,605.75
If the quotient is a whole number, then 4 and 129,465,605.75 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 | 517,862,423 | |
| -1 | 517,862,423 |
If you did it right, you will end up with this table:
| 1 | 13 | 19 | 247 | 1,117 | 1,877 | 14,521 | 21,223 | 24,401 | 35,663 | 275,899 | 463,619 | 2,096,609 | 27,255,917 | 39,835,571 | 517,862,423 |
| -1 | -13 | -19 | -247 | -1,117 | -1,877 | -14,521 | -21,223 | -24,401 | -35,663 | -275,899 | -463,619 | -2,096,609 | -27,255,917 | -39,835,571 | -517,862,423 |
Here are some more numbers to try:
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