A:
Positive:
1 x 25540504123 x 1110456759 x 4328899107 x 23869631357 x 1882131759 x 1451992461 x 1037816313 x 40457
Negative:
-1 x -255405041-23 x -11104567-59 x -4328899-107 x -2386963-1357 x -188213-1759 x -145199-2461 x -103781-6313 x -40457
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 255,405,041, 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 | 255,405,041 | |
| -1 | -255,405,041 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 255,405,041.
Example:
1 x 255,405,041 = 255,405,041
and
-1 x -255,405,041 = 255,405,041
Notice both answers equal 255,405,041
With that explanation out of the way, let's continue. Next, we take the number 255,405,041 and divide it by 2:
255,405,041 ÷ 2 = 127,702,520.5
If the quotient is a whole number, then 2 and 127,702,520.5 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 | 255,405,041 | |
| -1 | -255,405,041 |
Now, we try dividing 255,405,041 by 3:
255,405,041 ÷ 3 = 85,135,013.6667
If the quotient is a whole number, then 3 and 85,135,013.6667 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 | 255,405,041 | |
| -1 | -255,405,041 |
Let's try dividing by 4:
255,405,041 ÷ 4 = 63,851,260.25
If the quotient is a whole number, then 4 and 63,851,260.25 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 | 255,405,041 | |
| -1 | 255,405,041 |
If you did it right, you will end up with this table:
| 1 | 23 | 59 | 107 | 1,357 | 1,759 | 2,461 | 6,313 | 40,457 | 103,781 | 145,199 | 188,213 | 2,386,963 | 4,328,899 | 11,104,567 | 255,405,041 |
| -1 | -23 | -59 | -107 | -1,357 | -1,759 | -2,461 | -6,313 | -40,457 | -103,781 | -145,199 | -188,213 | -2,386,963 | -4,328,899 | -11,104,567 | -255,405,041 |
Here are some more numbers to try:
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