A:
Positive:
1 x 2765010855 x 553002177 x 3950015535 x 7900031307 x 9006551535 x 1801312149 x 12866510745 x 25733
Negative:
-1 x -276501085-5 x -55300217-7 x -39500155-35 x -7900031-307 x -900655-1535 x -180131-2149 x -128665-10745 x -25733
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 276,501,085, 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 | 276,501,085 | |
| -1 | -276,501,085 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 276,501,085.
Example:
1 x 276,501,085 = 276,501,085
and
-1 x -276,501,085 = 276,501,085
Notice both answers equal 276,501,085
With that explanation out of the way, let's continue. Next, we take the number 276,501,085 and divide it by 2:
276,501,085 ÷ 2 = 138,250,542.5
If the quotient is a whole number, then 2 and 138,250,542.5 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 | 276,501,085 | |
| -1 | -276,501,085 |
Now, we try dividing 276,501,085 by 3:
276,501,085 ÷ 3 = 92,167,028.3333
If the quotient is a whole number, then 3 and 92,167,028.3333 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 | 276,501,085 | |
| -1 | -276,501,085 |
Let's try dividing by 4:
276,501,085 ÷ 4 = 69,125,271.25
If the quotient is a whole number, then 4 and 69,125,271.25 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 | 276,501,085 | |
| -1 | 276,501,085 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 307 | 1,535 | 2,149 | 10,745 | 25,733 | 128,665 | 180,131 | 900,655 | 7,900,031 | 39,500,155 | 55,300,217 | 276,501,085 |
| -1 | -5 | -7 | -35 | -307 | -1,535 | -2,149 | -10,745 | -25,733 | -128,665 | -180,131 | -900,655 | -7,900,031 | -39,500,155 | -55,300,217 | -276,501,085 |
Here are some more numbers to try:
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