A:
Positive:
1 x 2540456055 x 5080912111 x 2309505555 x 461901189 x 2854445445 x 570889979 x 2594954895 x 51899
Negative:
-1 x -254045605-5 x -50809121-11 x -23095055-55 x -4619011-89 x -2854445-445 x -570889-979 x -259495-4895 x -51899
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 254,045,605, 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 | 254,045,605 | |
| -1 | -254,045,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 254,045,605.
Example:
1 x 254,045,605 = 254,045,605
and
-1 x -254,045,605 = 254,045,605
Notice both answers equal 254,045,605
With that explanation out of the way, let's continue. Next, we take the number 254,045,605 and divide it by 2:
254,045,605 ÷ 2 = 127,022,802.5
If the quotient is a whole number, then 2 and 127,022,802.5 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 | 254,045,605 | |
| -1 | -254,045,605 |
Now, we try dividing 254,045,605 by 3:
254,045,605 ÷ 3 = 84,681,868.3333
If the quotient is a whole number, then 3 and 84,681,868.3333 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 | 254,045,605 | |
| -1 | -254,045,605 |
Let's try dividing by 4:
254,045,605 ÷ 4 = 63,511,401.25
If the quotient is a whole number, then 4 and 63,511,401.25 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 | 254,045,605 | |
| -1 | 254,045,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 89 | 445 | 979 | 4,895 | 51,899 | 259,495 | 570,889 | 2,854,445 | 4,619,011 | 23,095,055 | 50,809,121 | 254,045,605 |
| -1 | -5 | -11 | -55 | -89 | -445 | -979 | -4,895 | -51,899 | -259,495 | -570,889 | -2,854,445 | -4,619,011 | -23,095,055 | -50,809,121 | -254,045,605 |
Here are some more numbers to try:
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