A:
Positive:
1 x 1938902323 x 84300129 x 66858741 x 472903667 x 29069709 x 27347943 x 205611189 x 16307
Negative:
-1 x -19389023-23 x -843001-29 x -668587-41 x -472903-667 x -29069-709 x -27347-943 x -20561-1189 x -16307
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 19,389,023, 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 | 19,389,023 | |
| -1 | -19,389,023 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 19,389,023.
Example:
1 x 19,389,023 = 19,389,023
and
-1 x -19,389,023 = 19,389,023
Notice both answers equal 19,389,023
With that explanation out of the way, let's continue. Next, we take the number 19,389,023 and divide it by 2:
19,389,023 ÷ 2 = 9,694,511.5
If the quotient is a whole number, then 2 and 9,694,511.5 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 | 19,389,023 | |
| -1 | -19,389,023 |
Now, we try dividing 19,389,023 by 3:
19,389,023 ÷ 3 = 6,463,007.6667
If the quotient is a whole number, then 3 and 6,463,007.6667 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 | 19,389,023 | |
| -1 | -19,389,023 |
Let's try dividing by 4:
19,389,023 ÷ 4 = 4,847,255.75
If the quotient is a whole number, then 4 and 4,847,255.75 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 | 19,389,023 | |
| -1 | 19,389,023 |
If you did it right, you will end up with this table:
| 1 | 23 | 29 | 41 | 667 | 709 | 943 | 1,189 | 16,307 | 20,561 | 27,347 | 29,069 | 472,903 | 668,587 | 843,001 | 19,389,023 |
| -1 | -23 | -29 | -41 | -667 | -709 | -943 | -1,189 | -16,307 | -20,561 | -27,347 | -29,069 | -472,903 | -668,587 | -843,001 | -19,389,023 |
Here are some more numbers to try:
Try the factor calculator