A:
Positive:
1 x 1906321313 x 146640119 x 1003327113 x 168701247 x 77179683 x 279111469 x 129772147 x 8879
Negative:
-1 x -19063213-13 x -1466401-19 x -1003327-113 x -168701-247 x -77179-683 x -27911-1469 x -12977-2147 x -8879
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 19,063,213, 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 | 19,063,213 | |
| -1 | -19,063,213 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 19,063,213.
Example:
1 x 19,063,213 = 19,063,213
and
-1 x -19,063,213 = 19,063,213
Notice both answers equal 19,063,213
With that explanation out of the way, let's continue. Next, we take the number 19,063,213 and divide it by 2:
19,063,213 ÷ 2 = 9,531,606.5
If the quotient is a whole number, then 2 and 9,531,606.5 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 | 19,063,213 | |
| -1 | -19,063,213 |
Now, we try dividing 19,063,213 by 3:
19,063,213 ÷ 3 = 6,354,404.3333
If the quotient is a whole number, then 3 and 6,354,404.3333 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 | 19,063,213 | |
| -1 | -19,063,213 |
Let's try dividing by 4:
19,063,213 ÷ 4 = 4,765,803.25
If the quotient is a whole number, then 4 and 4,765,803.25 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 | 19,063,213 | |
| -1 | 19,063,213 |
If you did it right, you will end up with this table:
| 1 | 13 | 19 | 113 | 247 | 683 | 1,469 | 2,147 | 8,879 | 12,977 | 27,911 | 77,179 | 168,701 | 1,003,327 | 1,466,401 | 19,063,213 |
| -1 | -13 | -19 | -113 | -247 | -683 | -1,469 | -2,147 | -8,879 | -12,977 | -27,911 | -77,179 | -168,701 | -1,003,327 | -1,466,401 | -19,063,213 |
Here are some more numbers to try:
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