A:
Positive:
1 x 192048655 x 384097389 x 215785103 x 186455419 x 45835445 x 43157515 x 372912095 x 9167
Negative:
-1 x -19204865-5 x -3840973-89 x -215785-103 x -186455-419 x -45835-445 x -43157-515 x -37291-2095 x -9167
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 19,204,865, 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 | 19,204,865 | |
| -1 | -19,204,865 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 19,204,865.
Example:
1 x 19,204,865 = 19,204,865
and
-1 x -19,204,865 = 19,204,865
Notice both answers equal 19,204,865
With that explanation out of the way, let's continue. Next, we take the number 19,204,865 and divide it by 2:
19,204,865 ÷ 2 = 9,602,432.5
If the quotient is a whole number, then 2 and 9,602,432.5 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 | 19,204,865 | |
| -1 | -19,204,865 |
Now, we try dividing 19,204,865 by 3:
19,204,865 ÷ 3 = 6,401,621.6667
If the quotient is a whole number, then 3 and 6,401,621.6667 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 | 19,204,865 | |
| -1 | -19,204,865 |
Let's try dividing by 4:
19,204,865 ÷ 4 = 4,801,216.25
If the quotient is a whole number, then 4 and 4,801,216.25 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 | 19,204,865 | |
| -1 | 19,204,865 |
If you did it right, you will end up with this table:
| 1 | 5 | 89 | 103 | 419 | 445 | 515 | 2,095 | 9,167 | 37,291 | 43,157 | 45,835 | 186,455 | 215,785 | 3,840,973 | 19,204,865 |
| -1 | -5 | -89 | -103 | -419 | -445 | -515 | -2,095 | -9,167 | -37,291 | -43,157 | -45,835 | -186,455 | -215,785 | -3,840,973 | -19,204,865 |
Here are some more numbers to try:
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