A:
Positive:
1 x 1945921913 x 149686323 x 846053151 x 128869299 x 65081431 x 451491963 x 99133473 x 5603
Negative:
-1 x -19459219-13 x -1496863-23 x -846053-151 x -128869-299 x -65081-431 x -45149-1963 x -9913-3473 x -5603
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 19,459,219, 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 | 19,459,219 | |
| -1 | -19,459,219 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 19,459,219.
Example:
1 x 19,459,219 = 19,459,219
and
-1 x -19,459,219 = 19,459,219
Notice both answers equal 19,459,219
With that explanation out of the way, let's continue. Next, we take the number 19,459,219 and divide it by 2:
19,459,219 ÷ 2 = 9,729,609.5
If the quotient is a whole number, then 2 and 9,729,609.5 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 | 19,459,219 | |
| -1 | -19,459,219 |
Now, we try dividing 19,459,219 by 3:
19,459,219 ÷ 3 = 6,486,406.3333
If the quotient is a whole number, then 3 and 6,486,406.3333 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 | 19,459,219 | |
| -1 | -19,459,219 |
Let's try dividing by 4:
19,459,219 ÷ 4 = 4,864,804.75
If the quotient is a whole number, then 4 and 4,864,804.75 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 | 19,459,219 | |
| -1 | 19,459,219 |
If you did it right, you will end up with this table:
| 1 | 13 | 23 | 151 | 299 | 431 | 1,963 | 3,473 | 5,603 | 9,913 | 45,149 | 65,081 | 128,869 | 846,053 | 1,496,863 | 19,459,219 |
| -1 | -13 | -23 | -151 | -299 | -431 | -1,963 | -3,473 | -5,603 | -9,913 | -45,149 | -65,081 | -128,869 | -846,053 | -1,496,863 | -19,459,219 |
Here are some more numbers to try:
Try the factor calculator