A:
Positive:
1 x 5166536055 x 10333072113 x 3974258519 x 2719229565 x 794851795 x 5438459247 x 20917151235 x 418343
Negative:
-1 x -516653605-5 x -103330721-13 x -39742585-19 x -27192295-65 x -7948517-95 x -5438459-247 x -2091715-1235 x -418343
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 516,653,605, 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 | 516,653,605 | |
| -1 | -516,653,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 516,653,605.
Example:
1 x 516,653,605 = 516,653,605
and
-1 x -516,653,605 = 516,653,605
Notice both answers equal 516,653,605
With that explanation out of the way, let's continue. Next, we take the number 516,653,605 and divide it by 2:
516,653,605 ÷ 2 = 258,326,802.5
If the quotient is a whole number, then 2 and 258,326,802.5 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 | 516,653,605 | |
| -1 | -516,653,605 |
Now, we try dividing 516,653,605 by 3:
516,653,605 ÷ 3 = 172,217,868.3333
If the quotient is a whole number, then 3 and 172,217,868.3333 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 | 516,653,605 | |
| -1 | -516,653,605 |
Let's try dividing by 4:
516,653,605 ÷ 4 = 129,163,401.25
If the quotient is a whole number, then 4 and 129,163,401.25 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 | 516,653,605 | |
| -1 | 516,653,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 19 | 65 | 95 | 247 | 1,235 | 418,343 | 2,091,715 | 5,438,459 | 7,948,517 | 27,192,295 | 39,742,585 | 103,330,721 | 516,653,605 |
| -1 | -5 | -13 | -19 | -65 | -95 | -247 | -1,235 | -418,343 | -2,091,715 | -5,438,459 | -7,948,517 | -27,192,295 | -39,742,585 | -103,330,721 | -516,653,605 |
Here are some more numbers to try:
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