A:
Positive:
1 x 1313316119 x 69121923 x 57100741 x 320321437 x 30053733 x 17917779 x 16859943 x 13927
Negative:
-1 x -13133161-19 x -691219-23 x -571007-41 x -320321-437 x -30053-733 x -17917-779 x -16859-943 x -13927
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 13,133,161, 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 | 13,133,161 | |
| -1 | -13,133,161 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,133,161.
Example:
1 x 13,133,161 = 13,133,161
and
-1 x -13,133,161 = 13,133,161
Notice both answers equal 13,133,161
With that explanation out of the way, let's continue. Next, we take the number 13,133,161 and divide it by 2:
13,133,161 ÷ 2 = 6,566,580.5
If the quotient is a whole number, then 2 and 6,566,580.5 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 | 13,133,161 | |
| -1 | -13,133,161 |
Now, we try dividing 13,133,161 by 3:
13,133,161 ÷ 3 = 4,377,720.3333
If the quotient is a whole number, then 3 and 4,377,720.3333 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 | 13,133,161 | |
| -1 | -13,133,161 |
Let's try dividing by 4:
13,133,161 ÷ 4 = 3,283,290.25
If the quotient is a whole number, then 4 and 3,283,290.25 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 | 13,133,161 | |
| -1 | 13,133,161 |
If you did it right, you will end up with this table:
| 1 | 19 | 23 | 41 | 437 | 733 | 779 | 943 | 13,927 | 16,859 | 17,917 | 30,053 | 320,321 | 571,007 | 691,219 | 13,133,161 |
| -1 | -19 | -23 | -41 | -437 | -733 | -779 | -943 | -13,927 | -16,859 | -17,917 | -30,053 | -320,321 | -571,007 | -691,219 | -13,133,161 |
Here are some more numbers to try:
Try the factor calculator