A:
Positive:
1 x 190491055 x 380982167 x 284315101 x 188605335 x 56863505 x 37721563 x 338352815 x 6767
Negative:
-1 x -19049105-5 x -3809821-67 x -284315-101 x -188605-335 x -56863-505 x -37721-563 x -33835-2815 x -6767
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 19,049,105, 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 | 19,049,105 | |
| -1 | -19,049,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 19,049,105.
Example:
1 x 19,049,105 = 19,049,105
and
-1 x -19,049,105 = 19,049,105
Notice both answers equal 19,049,105
With that explanation out of the way, let's continue. Next, we take the number 19,049,105 and divide it by 2:
19,049,105 ÷ 2 = 9,524,552.5
If the quotient is a whole number, then 2 and 9,524,552.5 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 | 19,049,105 | |
| -1 | -19,049,105 |
Now, we try dividing 19,049,105 by 3:
19,049,105 ÷ 3 = 6,349,701.6667
If the quotient is a whole number, then 3 and 6,349,701.6667 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 | 19,049,105 | |
| -1 | -19,049,105 |
Let's try dividing by 4:
19,049,105 ÷ 4 = 4,762,276.25
If the quotient is a whole number, then 4 and 4,762,276.25 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 | 19,049,105 | |
| -1 | 19,049,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 67 | 101 | 335 | 505 | 563 | 2,815 | 6,767 | 33,835 | 37,721 | 56,863 | 188,605 | 284,315 | 3,809,821 | 19,049,105 |
| -1 | -5 | -67 | -101 | -335 | -505 | -563 | -2,815 | -6,767 | -33,835 | -37,721 | -56,863 | -188,605 | -284,315 | -3,809,821 | -19,049,105 |
Here are some more numbers to try:
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