A:
Positive:
1 x 2116063313 x 162774129 x 72967737 x 57190941 x 516113377 x 56129481 x 43993533 x 397011073 x 197211189 x 177971369 x 154571517 x 13949
Negative:
-1 x -21160633-13 x -1627741-29 x -729677-37 x -571909-41 x -516113-377 x -56129-481 x -43993-533 x -39701-1073 x -19721-1189 x -17797-1369 x -15457-1517 x -13949
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 21,160,633, 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 | 21,160,633 | |
| -1 | -21,160,633 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,160,633.
Example:
1 x 21,160,633 = 21,160,633
and
-1 x -21,160,633 = 21,160,633
Notice both answers equal 21,160,633
With that explanation out of the way, let's continue. Next, we take the number 21,160,633 and divide it by 2:
21,160,633 ÷ 2 = 10,580,316.5
If the quotient is a whole number, then 2 and 10,580,316.5 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 | 21,160,633 | |
| -1 | -21,160,633 |
Now, we try dividing 21,160,633 by 3:
21,160,633 ÷ 3 = 7,053,544.3333
If the quotient is a whole number, then 3 and 7,053,544.3333 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 | 21,160,633 | |
| -1 | -21,160,633 |
Let's try dividing by 4:
21,160,633 ÷ 4 = 5,290,158.25
If the quotient is a whole number, then 4 and 5,290,158.25 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 | 21,160,633 | |
| -1 | 21,160,633 |
If you did it right, you will end up with this table:
| 1 | 13 | 29 | 37 | 41 | 377 | 481 | 533 | 1,073 | 1,189 | 1,369 | 1,517 | 13,949 | 15,457 | 17,797 | 19,721 | 39,701 | 43,993 | 56,129 | 516,113 | 571,909 | 729,677 | 1,627,741 | 21,160,633 |
| -1 | -13 | -29 | -37 | -41 | -377 | -481 | -533 | -1,073 | -1,189 | -1,369 | -1,517 | -13,949 | -15,457 | -17,797 | -19,721 | -39,701 | -43,993 | -56,129 | -516,113 | -571,909 | -729,677 | -1,627,741 | -21,160,633 |
Here are some more numbers to try:
Try the factor calculator