A:
Positive:
1 x 264214855 x 528429717 x 155420585 x 310841163 x 162095815 x 324191907 x 138552771 x 9535
Negative:
-1 x -26421485-5 x -5284297-17 x -1554205-85 x -310841-163 x -162095-815 x -32419-1907 x -13855-2771 x -9535
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 26,421,485, 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 | 26,421,485 | |
| -1 | -26,421,485 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 26,421,485.
Example:
1 x 26,421,485 = 26,421,485
and
-1 x -26,421,485 = 26,421,485
Notice both answers equal 26,421,485
With that explanation out of the way, let's continue. Next, we take the number 26,421,485 and divide it by 2:
26,421,485 ÷ 2 = 13,210,742.5
If the quotient is a whole number, then 2 and 13,210,742.5 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 | 26,421,485 | |
| -1 | -26,421,485 |
Now, we try dividing 26,421,485 by 3:
26,421,485 ÷ 3 = 8,807,161.6667
If the quotient is a whole number, then 3 and 8,807,161.6667 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 | 26,421,485 | |
| -1 | -26,421,485 |
Let's try dividing by 4:
26,421,485 ÷ 4 = 6,605,371.25
If the quotient is a whole number, then 4 and 6,605,371.25 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 | 26,421,485 | |
| -1 | 26,421,485 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 163 | 815 | 1,907 | 2,771 | 9,535 | 13,855 | 32,419 | 162,095 | 310,841 | 1,554,205 | 5,284,297 | 26,421,485 |
| -1 | -5 | -17 | -85 | -163 | -815 | -1,907 | -2,771 | -9,535 | -13,855 | -32,419 | -162,095 | -310,841 | -1,554,205 | -5,284,297 | -26,421,485 |
Here are some more numbers to try:
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