A:
Positive:
1 x 196233317 x 280333313 x 150948791 x 215641223 x 87997967 x 202931561 x 125712899 x 6769
Negative:
-1 x -19623331-7 x -2803333-13 x -1509487-91 x -215641-223 x -87997-967 x -20293-1561 x -12571-2899 x -6769
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 19,623,331, 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 | 19,623,331 | |
| -1 | -19,623,331 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 19,623,331.
Example:
1 x 19,623,331 = 19,623,331
and
-1 x -19,623,331 = 19,623,331
Notice both answers equal 19,623,331
With that explanation out of the way, let's continue. Next, we take the number 19,623,331 and divide it by 2:
19,623,331 ÷ 2 = 9,811,665.5
If the quotient is a whole number, then 2 and 9,811,665.5 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 | 19,623,331 | |
| -1 | -19,623,331 |
Now, we try dividing 19,623,331 by 3:
19,623,331 ÷ 3 = 6,541,110.3333
If the quotient is a whole number, then 3 and 6,541,110.3333 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 | 19,623,331 | |
| -1 | -19,623,331 |
Let's try dividing by 4:
19,623,331 ÷ 4 = 4,905,832.75
If the quotient is a whole number, then 4 and 4,905,832.75 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 | 19,623,331 | |
| -1 | 19,623,331 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 223 | 967 | 1,561 | 2,899 | 6,769 | 12,571 | 20,293 | 87,997 | 215,641 | 1,509,487 | 2,803,333 | 19,623,331 |
| -1 | -7 | -13 | -91 | -223 | -967 | -1,561 | -2,899 | -6,769 | -12,571 | -20,293 | -87,997 | -215,641 | -1,509,487 | -2,803,333 | -19,623,331 |
Here are some more numbers to try:
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