A:
Positive:
1 x 1962392311 x 178399329 x 676687227 x 86449271 x 72413319 x 615172497 x 78592981 x 6583
Negative:
-1 x -19623923-11 x -1783993-29 x -676687-227 x -86449-271 x -72413-319 x -61517-2497 x -7859-2981 x -6583
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 19,623,923, 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 | 19,623,923 | |
| -1 | -19,623,923 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 19,623,923.
Example:
1 x 19,623,923 = 19,623,923
and
-1 x -19,623,923 = 19,623,923
Notice both answers equal 19,623,923
With that explanation out of the way, let's continue. Next, we take the number 19,623,923 and divide it by 2:
19,623,923 ÷ 2 = 9,811,961.5
If the quotient is a whole number, then 2 and 9,811,961.5 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 | 19,623,923 | |
| -1 | -19,623,923 |
Now, we try dividing 19,623,923 by 3:
19,623,923 ÷ 3 = 6,541,307.6667
If the quotient is a whole number, then 3 and 6,541,307.6667 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 | 19,623,923 | |
| -1 | -19,623,923 |
Let's try dividing by 4:
19,623,923 ÷ 4 = 4,905,980.75
If the quotient is a whole number, then 4 and 4,905,980.75 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 | 19,623,923 | |
| -1 | 19,623,923 |
If you did it right, you will end up with this table:
| 1 | 11 | 29 | 227 | 271 | 319 | 2,497 | 2,981 | 6,583 | 7,859 | 61,517 | 72,413 | 86,449 | 676,687 | 1,783,993 | 19,623,923 |
| -1 | -11 | -29 | -227 | -271 | -319 | -2,497 | -2,981 | -6,583 | -7,859 | -61,517 | -72,413 | -86,449 | -676,687 | -1,783,993 | -19,623,923 |
Here are some more numbers to try:
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