A:
Positive:
1 x 2455332555 x 4910665111 x 2232120555 x 4464241379 x 6478451895 x 1295694169 x 5889511779 x 20845
Negative:
-1 x -245533255-5 x -49106651-11 x -22321205-55 x -4464241-379 x -647845-1895 x -129569-4169 x -58895-11779 x -20845
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 245,533,255, 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 | 245,533,255 | |
| -1 | -245,533,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 245,533,255.
Example:
1 x 245,533,255 = 245,533,255
and
-1 x -245,533,255 = 245,533,255
Notice both answers equal 245,533,255
With that explanation out of the way, let's continue. Next, we take the number 245,533,255 and divide it by 2:
245,533,255 ÷ 2 = 122,766,627.5
If the quotient is a whole number, then 2 and 122,766,627.5 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 | 245,533,255 | |
| -1 | -245,533,255 |
Now, we try dividing 245,533,255 by 3:
245,533,255 ÷ 3 = 81,844,418.3333
If the quotient is a whole number, then 3 and 81,844,418.3333 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 | 245,533,255 | |
| -1 | -245,533,255 |
Let's try dividing by 4:
245,533,255 ÷ 4 = 61,383,313.75
If the quotient is a whole number, then 4 and 61,383,313.75 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 | 245,533,255 | |
| -1 | 245,533,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 379 | 1,895 | 4,169 | 11,779 | 20,845 | 58,895 | 129,569 | 647,845 | 4,464,241 | 22,321,205 | 49,106,651 | 245,533,255 |
| -1 | -5 | -11 | -55 | -379 | -1,895 | -4,169 | -11,779 | -20,845 | -58,895 | -129,569 | -647,845 | -4,464,241 | -22,321,205 | -49,106,651 | -245,533,255 |
Here are some more numbers to try:
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