A:
Positive:
1 x 2541030555 x 5082061119 x 1337384595 x 2674769337 x 7540151685 x 1508036403 x 396857937 x 32015
Negative:
-1 x -254103055-5 x -50820611-19 x -13373845-95 x -2674769-337 x -754015-1685 x -150803-6403 x -39685-7937 x -32015
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 254,103,055, 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 | 254,103,055 | |
| -1 | -254,103,055 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 254,103,055.
Example:
1 x 254,103,055 = 254,103,055
and
-1 x -254,103,055 = 254,103,055
Notice both answers equal 254,103,055
With that explanation out of the way, let's continue. Next, we take the number 254,103,055 and divide it by 2:
254,103,055 ÷ 2 = 127,051,527.5
If the quotient is a whole number, then 2 and 127,051,527.5 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 | 254,103,055 | |
| -1 | -254,103,055 |
Now, we try dividing 254,103,055 by 3:
254,103,055 ÷ 3 = 84,701,018.3333
If the quotient is a whole number, then 3 and 84,701,018.3333 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 | 254,103,055 | |
| -1 | -254,103,055 |
Let's try dividing by 4:
254,103,055 ÷ 4 = 63,525,763.75
If the quotient is a whole number, then 4 and 63,525,763.75 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 | 254,103,055 | |
| -1 | 254,103,055 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 337 | 1,685 | 6,403 | 7,937 | 32,015 | 39,685 | 150,803 | 754,015 | 2,674,769 | 13,373,845 | 50,820,611 | 254,103,055 |
| -1 | -5 | -19 | -95 | -337 | -1,685 | -6,403 | -7,937 | -32,015 | -39,685 | -150,803 | -754,015 | -2,674,769 | -13,373,845 | -50,820,611 | -254,103,055 |
Here are some more numbers to try:
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