A:
Positive:
1 x 1865893119 x 98204931 x 60190179 x 236189401 x 46531589 x 316791501 x 124312449 x 7619
Negative:
-1 x -18658931-19 x -982049-31 x -601901-79 x -236189-401 x -46531-589 x -31679-1501 x -12431-2449 x -7619
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 18,658,931, 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 | 18,658,931 | |
| -1 | -18,658,931 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,658,931.
Example:
1 x 18,658,931 = 18,658,931
and
-1 x -18,658,931 = 18,658,931
Notice both answers equal 18,658,931
With that explanation out of the way, let's continue. Next, we take the number 18,658,931 and divide it by 2:
18,658,931 ÷ 2 = 9,329,465.5
If the quotient is a whole number, then 2 and 9,329,465.5 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 | 18,658,931 | |
| -1 | -18,658,931 |
Now, we try dividing 18,658,931 by 3:
18,658,931 ÷ 3 = 6,219,643.6667
If the quotient is a whole number, then 3 and 6,219,643.6667 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 | 18,658,931 | |
| -1 | -18,658,931 |
Let's try dividing by 4:
18,658,931 ÷ 4 = 4,664,732.75
If the quotient is a whole number, then 4 and 4,664,732.75 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 | 18,658,931 | |
| -1 | 18,658,931 |
If you did it right, you will end up with this table:
| 1 | 19 | 31 | 79 | 401 | 589 | 1,501 | 2,449 | 7,619 | 12,431 | 31,679 | 46,531 | 236,189 | 601,901 | 982,049 | 18,658,931 |
| -1 | -19 | -31 | -79 | -401 | -589 | -1,501 | -2,449 | -7,619 | -12,431 | -31,679 | -46,531 | -236,189 | -601,901 | -982,049 | -18,658,931 |
Here are some more numbers to try:
Try the factor calculator