A:
Positive:
1 x 50221384717 x 2954199147 x 10685401421 x 1192907799 x 6285531493 x 3363797157 x 7017119787 x 25381
Negative:
-1 x -502213847-17 x -29541991-47 x -10685401-421 x -1192907-799 x -628553-1493 x -336379-7157 x -70171-19787 x -25381
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 502,213,847, 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 | 502,213,847 | |
| -1 | -502,213,847 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 502,213,847.
Example:
1 x 502,213,847 = 502,213,847
and
-1 x -502,213,847 = 502,213,847
Notice both answers equal 502,213,847
With that explanation out of the way, let's continue. Next, we take the number 502,213,847 and divide it by 2:
502,213,847 ÷ 2 = 251,106,923.5
If the quotient is a whole number, then 2 and 251,106,923.5 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 | 502,213,847 | |
| -1 | -502,213,847 |
Now, we try dividing 502,213,847 by 3:
502,213,847 ÷ 3 = 167,404,615.6667
If the quotient is a whole number, then 3 and 167,404,615.6667 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 | 502,213,847 | |
| -1 | -502,213,847 |
Let's try dividing by 4:
502,213,847 ÷ 4 = 125,553,461.75
If the quotient is a whole number, then 4 and 125,553,461.75 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 | 502,213,847 | |
| -1 | 502,213,847 |
If you did it right, you will end up with this table:
| 1 | 17 | 47 | 421 | 799 | 1,493 | 7,157 | 19,787 | 25,381 | 70,171 | 336,379 | 628,553 | 1,192,907 | 10,685,401 | 29,541,991 | 502,213,847 |
| -1 | -17 | -47 | -421 | -799 | -1,493 | -7,157 | -19,787 | -25,381 | -70,171 | -336,379 | -628,553 | -1,192,907 | -10,685,401 | -29,541,991 | -502,213,847 |
Here are some more numbers to try:
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