A:
Positive:
1 x 22106351311 x 2009668341 x 539179347 x 4703479451 x 490163517 x 4275891927 x 11471910429 x 21197
Negative:
-1 x -221063513-11 x -20096683-41 x -5391793-47 x -4703479-451 x -490163-517 x -427589-1927 x -114719-10429 x -21197
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 221,063,513, 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 | 221,063,513 | |
| -1 | -221,063,513 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 221,063,513.
Example:
1 x 221,063,513 = 221,063,513
and
-1 x -221,063,513 = 221,063,513
Notice both answers equal 221,063,513
With that explanation out of the way, let's continue. Next, we take the number 221,063,513 and divide it by 2:
221,063,513 ÷ 2 = 110,531,756.5
If the quotient is a whole number, then 2 and 110,531,756.5 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 | 221,063,513 | |
| -1 | -221,063,513 |
Now, we try dividing 221,063,513 by 3:
221,063,513 ÷ 3 = 73,687,837.6667
If the quotient is a whole number, then 3 and 73,687,837.6667 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 | 221,063,513 | |
| -1 | -221,063,513 |
Let's try dividing by 4:
221,063,513 ÷ 4 = 55,265,878.25
If the quotient is a whole number, then 4 and 55,265,878.25 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 | 221,063,513 | |
| -1 | 221,063,513 |
If you did it right, you will end up with this table:
| 1 | 11 | 41 | 47 | 451 | 517 | 1,927 | 10,429 | 21,197 | 114,719 | 427,589 | 490,163 | 4,703,479 | 5,391,793 | 20,096,683 | 221,063,513 |
| -1 | -11 | -41 | -47 | -451 | -517 | -1,927 | -10,429 | -21,197 | -114,719 | -427,589 | -490,163 | -4,703,479 | -5,391,793 | -20,096,683 | -221,063,513 |
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