A:
Positive:
1 x 2010505913 x 154654319 x 105816123 x 874133247 x 81397299 x 67241437 x 460073539 x 5681
Negative:
-1 x -20105059-13 x -1546543-19 x -1058161-23 x -874133-247 x -81397-299 x -67241-437 x -46007-3539 x -5681
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 20,105,059, 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 | 20,105,059 | |
| -1 | -20,105,059 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,105,059.
Example:
1 x 20,105,059 = 20,105,059
and
-1 x -20,105,059 = 20,105,059
Notice both answers equal 20,105,059
With that explanation out of the way, let's continue. Next, we take the number 20,105,059 and divide it by 2:
20,105,059 ÷ 2 = 10,052,529.5
If the quotient is a whole number, then 2 and 10,052,529.5 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 | 20,105,059 | |
| -1 | -20,105,059 |
Now, we try dividing 20,105,059 by 3:
20,105,059 ÷ 3 = 6,701,686.3333
If the quotient is a whole number, then 3 and 6,701,686.3333 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 | 20,105,059 | |
| -1 | -20,105,059 |
Let's try dividing by 4:
20,105,059 ÷ 4 = 5,026,264.75
If the quotient is a whole number, then 4 and 5,026,264.75 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 | 20,105,059 | |
| -1 | 20,105,059 |
If you did it right, you will end up with this table:
| 1 | 13 | 19 | 23 | 247 | 299 | 437 | 3,539 | 5,681 | 46,007 | 67,241 | 81,397 | 874,133 | 1,058,161 | 1,546,543 | 20,105,059 |
| -1 | -13 | -19 | -23 | -247 | -299 | -437 | -3,539 | -5,681 | -46,007 | -67,241 | -81,397 | -874,133 | -1,058,161 | -1,546,543 | -20,105,059 |
Here are some more numbers to try:
Try the factor calculator