A:
Positive:
1 x 21988669313 x 1691436123 x 956029189 x 2470637299 x 7354071157 x 1900492047 x 1074198263 x 26611
Negative:
-1 x -219886693-13 x -16914361-23 x -9560291-89 x -2470637-299 x -735407-1157 x -190049-2047 x -107419-8263 x -26611
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 219,886,693, 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 | 219,886,693 | |
| -1 | -219,886,693 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 219,886,693.
Example:
1 x 219,886,693 = 219,886,693
and
-1 x -219,886,693 = 219,886,693
Notice both answers equal 219,886,693
With that explanation out of the way, let's continue. Next, we take the number 219,886,693 and divide it by 2:
219,886,693 ÷ 2 = 109,943,346.5
If the quotient is a whole number, then 2 and 109,943,346.5 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 | 219,886,693 | |
| -1 | -219,886,693 |
Now, we try dividing 219,886,693 by 3:
219,886,693 ÷ 3 = 73,295,564.3333
If the quotient is a whole number, then 3 and 73,295,564.3333 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 | 219,886,693 | |
| -1 | -219,886,693 |
Let's try dividing by 4:
219,886,693 ÷ 4 = 54,971,673.25
If the quotient is a whole number, then 4 and 54,971,673.25 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 | 219,886,693 | |
| -1 | 219,886,693 |
If you did it right, you will end up with this table:
| 1 | 13 | 23 | 89 | 299 | 1,157 | 2,047 | 8,263 | 26,611 | 107,419 | 190,049 | 735,407 | 2,470,637 | 9,560,291 | 16,914,361 | 219,886,693 |
| -1 | -13 | -23 | -89 | -299 | -1,157 | -2,047 | -8,263 | -26,611 | -107,419 | -190,049 | -735,407 | -2,470,637 | -9,560,291 | -16,914,361 | -219,886,693 |
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