A:
Positive:
1 x 2541110117 x 3630157311 x 2310100149 x 518593977 x 3300143121 x 2100091539 x 471449847 x 3000135929 x 42859
Negative:
-1 x -254111011-7 x -36301573-11 x -23101001-49 x -5185939-77 x -3300143-121 x -2100091-539 x -471449-847 x -300013-5929 x -42859
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 254,111,011, 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 | 254,111,011 | |
| -1 | -254,111,011 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 254,111,011.
Example:
1 x 254,111,011 = 254,111,011
and
-1 x -254,111,011 = 254,111,011
Notice both answers equal 254,111,011
With that explanation out of the way, let's continue. Next, we take the number 254,111,011 and divide it by 2:
254,111,011 ÷ 2 = 127,055,505.5
If the quotient is a whole number, then 2 and 127,055,505.5 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 | 254,111,011 | |
| -1 | -254,111,011 |
Now, we try dividing 254,111,011 by 3:
254,111,011 ÷ 3 = 84,703,670.3333
If the quotient is a whole number, then 3 and 84,703,670.3333 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 | 254,111,011 | |
| -1 | -254,111,011 |
Let's try dividing by 4:
254,111,011 ÷ 4 = 63,527,752.75
If the quotient is a whole number, then 4 and 63,527,752.75 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 | 254,111,011 | |
| -1 | 254,111,011 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 49 | 77 | 121 | 539 | 847 | 5,929 | 42,859 | 300,013 | 471,449 | 2,100,091 | 3,300,143 | 5,185,939 | 23,101,001 | 36,301,573 | 254,111,011 |
| -1 | -7 | -11 | -49 | -77 | -121 | -539 | -847 | -5,929 | -42,859 | -300,013 | -471,449 | -2,100,091 | -3,300,143 | -5,185,939 | -23,101,001 | -36,301,573 | -254,111,011 |
Here are some more numbers to try:
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