A:
Positive:
1 x 30556038711 x 2777821779 x 3867853227 x 1346081869 x 3516231549 x 1972632497 x 12237117039 x 17933
Negative:
-1 x -305560387-11 x -27778217-79 x -3867853-227 x -1346081-869 x -351623-1549 x -197263-2497 x -122371-17039 x -17933
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 305,560,387, 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 | 305,560,387 | |
| -1 | -305,560,387 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 305,560,387.
Example:
1 x 305,560,387 = 305,560,387
and
-1 x -305,560,387 = 305,560,387
Notice both answers equal 305,560,387
With that explanation out of the way, let's continue. Next, we take the number 305,560,387 and divide it by 2:
305,560,387 ÷ 2 = 152,780,193.5
If the quotient is a whole number, then 2 and 152,780,193.5 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 | 305,560,387 | |
| -1 | -305,560,387 |
Now, we try dividing 305,560,387 by 3:
305,560,387 ÷ 3 = 101,853,462.3333
If the quotient is a whole number, then 3 and 101,853,462.3333 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 | 305,560,387 | |
| -1 | -305,560,387 |
Let's try dividing by 4:
305,560,387 ÷ 4 = 76,390,096.75
If the quotient is a whole number, then 4 and 76,390,096.75 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 | 305,560,387 | |
| -1 | 305,560,387 |
If you did it right, you will end up with this table:
| 1 | 11 | 79 | 227 | 869 | 1,549 | 2,497 | 17,039 | 17,933 | 122,371 | 197,263 | 351,623 | 1,346,081 | 3,867,853 | 27,778,217 | 305,560,387 |
| -1 | -11 | -79 | -227 | -869 | -1,549 | -2,497 | -17,039 | -17,933 | -122,371 | -197,263 | -351,623 | -1,346,081 | -3,867,853 | -27,778,217 | -305,560,387 |
Here are some more numbers to try:
Try the factor calculator