A:
Positive:
1 x 196221355 x 392442713 x 150939565 x 301879127 x 154505635 x 309011651 x 118852377 x 8255
Negative:
-1 x -19622135-5 x -3924427-13 x -1509395-65 x -301879-127 x -154505-635 x -30901-1651 x -11885-2377 x -8255
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 19,622,135, 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 | 19,622,135 | |
| -1 | -19,622,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 19,622,135.
Example:
1 x 19,622,135 = 19,622,135
and
-1 x -19,622,135 = 19,622,135
Notice both answers equal 19,622,135
With that explanation out of the way, let's continue. Next, we take the number 19,622,135 and divide it by 2:
19,622,135 ÷ 2 = 9,811,067.5
If the quotient is a whole number, then 2 and 9,811,067.5 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 | 19,622,135 | |
| -1 | -19,622,135 |
Now, we try dividing 19,622,135 by 3:
19,622,135 ÷ 3 = 6,540,711.6667
If the quotient is a whole number, then 3 and 6,540,711.6667 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 | 19,622,135 | |
| -1 | -19,622,135 |
Let's try dividing by 4:
19,622,135 ÷ 4 = 4,905,533.75
If the quotient is a whole number, then 4 and 4,905,533.75 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 | 19,622,135 | |
| -1 | 19,622,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 127 | 635 | 1,651 | 2,377 | 8,255 | 11,885 | 30,901 | 154,505 | 301,879 | 1,509,395 | 3,924,427 | 19,622,135 |
| -1 | -5 | -13 | -65 | -127 | -635 | -1,651 | -2,377 | -8,255 | -11,885 | -30,901 | -154,505 | -301,879 | -1,509,395 | -3,924,427 | -19,622,135 |
Here are some more numbers to try:
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