A:
Positive:
1 x 2633061255 x 5266122525 x 10532245125 x 2106449163 x 1615375815 x 3230754075 x 6461512923 x 20375
Negative:
-1 x -263306125-5 x -52661225-25 x -10532245-125 x -2106449-163 x -1615375-815 x -323075-4075 x -64615-12923 x -20375
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 263,306,125, 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 | 263,306,125 | |
| -1 | -263,306,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 263,306,125.
Example:
1 x 263,306,125 = 263,306,125
and
-1 x -263,306,125 = 263,306,125
Notice both answers equal 263,306,125
With that explanation out of the way, let's continue. Next, we take the number 263,306,125 and divide it by 2:
263,306,125 ÷ 2 = 131,653,062.5
If the quotient is a whole number, then 2 and 131,653,062.5 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 | 263,306,125 | |
| -1 | -263,306,125 |
Now, we try dividing 263,306,125 by 3:
263,306,125 ÷ 3 = 87,768,708.3333
If the quotient is a whole number, then 3 and 87,768,708.3333 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 | 263,306,125 | |
| -1 | -263,306,125 |
Let's try dividing by 4:
263,306,125 ÷ 4 = 65,826,531.25
If the quotient is a whole number, then 4 and 65,826,531.25 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 | 263,306,125 | |
| -1 | 263,306,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 125 | 163 | 815 | 4,075 | 12,923 | 20,375 | 64,615 | 323,075 | 1,615,375 | 2,106,449 | 10,532,245 | 52,661,225 | 263,306,125 |
| -1 | -5 | -25 | -125 | -163 | -815 | -4,075 | -12,923 | -20,375 | -64,615 | -323,075 | -1,615,375 | -2,106,449 | -10,532,245 | -52,661,225 | -263,306,125 |
Here are some more numbers to try:
Try the factor calculator