A:
Positive:
1 x 2543400055 x 5086800129 x 8770345145 x 1754069733 x 3469852393 x 1062853665 x 6939711965 x 21257
Negative:
-1 x -254340005-5 x -50868001-29 x -8770345-145 x -1754069-733 x -346985-2393 x -106285-3665 x -69397-11965 x -21257
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 254,340,005, 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 | 254,340,005 | |
| -1 | -254,340,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 254,340,005.
Example:
1 x 254,340,005 = 254,340,005
and
-1 x -254,340,005 = 254,340,005
Notice both answers equal 254,340,005
With that explanation out of the way, let's continue. Next, we take the number 254,340,005 and divide it by 2:
254,340,005 ÷ 2 = 127,170,002.5
If the quotient is a whole number, then 2 and 127,170,002.5 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 | 254,340,005 | |
| -1 | -254,340,005 |
Now, we try dividing 254,340,005 by 3:
254,340,005 ÷ 3 = 84,780,001.6667
If the quotient is a whole number, then 3 and 84,780,001.6667 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 | 254,340,005 | |
| -1 | -254,340,005 |
Let's try dividing by 4:
254,340,005 ÷ 4 = 63,585,001.25
If the quotient is a whole number, then 4 and 63,585,001.25 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 | 254,340,005 | |
| -1 | 254,340,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 733 | 2,393 | 3,665 | 11,965 | 21,257 | 69,397 | 106,285 | 346,985 | 1,754,069 | 8,770,345 | 50,868,001 | 254,340,005 |
| -1 | -5 | -29 | -145 | -733 | -2,393 | -3,665 | -11,965 | -21,257 | -69,397 | -106,285 | -346,985 | -1,754,069 | -8,770,345 | -50,868,001 | -254,340,005 |
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