A:
Positive:
1 x 2544554117 x 36350773181 x 1405831229 x 1111159877 x 2901431267 x 2008331603 x 1587376139 x 41449
Negative:
-1 x -254455411-7 x -36350773-181 x -1405831-229 x -1111159-877 x -290143-1267 x -200833-1603 x -158737-6139 x -41449
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 254,455,411, 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 | 254,455,411 | |
| -1 | -254,455,411 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 254,455,411.
Example:
1 x 254,455,411 = 254,455,411
and
-1 x -254,455,411 = 254,455,411
Notice both answers equal 254,455,411
With that explanation out of the way, let's continue. Next, we take the number 254,455,411 and divide it by 2:
254,455,411 ÷ 2 = 127,227,705.5
If the quotient is a whole number, then 2 and 127,227,705.5 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 | 254,455,411 | |
| -1 | -254,455,411 |
Now, we try dividing 254,455,411 by 3:
254,455,411 ÷ 3 = 84,818,470.3333
If the quotient is a whole number, then 3 and 84,818,470.3333 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 | 254,455,411 | |
| -1 | -254,455,411 |
Let's try dividing by 4:
254,455,411 ÷ 4 = 63,613,852.75
If the quotient is a whole number, then 4 and 63,613,852.75 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 | 254,455,411 | |
| -1 | 254,455,411 |
If you did it right, you will end up with this table:
| 1 | 7 | 181 | 229 | 877 | 1,267 | 1,603 | 6,139 | 41,449 | 158,737 | 200,833 | 290,143 | 1,111,159 | 1,405,831 | 36,350,773 | 254,455,411 |
| -1 | -7 | -181 | -229 | -877 | -1,267 | -1,603 | -6,139 | -41,449 | -158,737 | -200,833 | -290,143 | -1,111,159 | -1,405,831 | -36,350,773 | -254,455,411 |
Here are some more numbers to try:
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