A:
Positive:
1 x 5212276455 x 10424552931 x 16813795109 x 4781905155 x 3362759545 x 9563813379 x 15425516895 x 30851
Negative:
-1 x -521227645-5 x -104245529-31 x -16813795-109 x -4781905-155 x -3362759-545 x -956381-3379 x -154255-16895 x -30851
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 521,227,645, 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 | 521,227,645 | |
| -1 | -521,227,645 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 521,227,645.
Example:
1 x 521,227,645 = 521,227,645
and
-1 x -521,227,645 = 521,227,645
Notice both answers equal 521,227,645
With that explanation out of the way, let's continue. Next, we take the number 521,227,645 and divide it by 2:
521,227,645 ÷ 2 = 260,613,822.5
If the quotient is a whole number, then 2 and 260,613,822.5 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 | 521,227,645 | |
| -1 | -521,227,645 |
Now, we try dividing 521,227,645 by 3:
521,227,645 ÷ 3 = 173,742,548.3333
If the quotient is a whole number, then 3 and 173,742,548.3333 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 | 521,227,645 | |
| -1 | -521,227,645 |
Let's try dividing by 4:
521,227,645 ÷ 4 = 130,306,911.25
If the quotient is a whole number, then 4 and 130,306,911.25 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 | 521,227,645 | |
| -1 | 521,227,645 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 109 | 155 | 545 | 3,379 | 16,895 | 30,851 | 154,255 | 956,381 | 3,362,759 | 4,781,905 | 16,813,795 | 104,245,529 | 521,227,645 |
| -1 | -5 | -31 | -109 | -155 | -545 | -3,379 | -16,895 | -30,851 | -154,255 | -956,381 | -3,362,759 | -4,781,905 | -16,813,795 | -104,245,529 | -521,227,645 |
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