A:
Positive:
1 x 3053506455 x 6107012923 x 13276115115 x 2655223337 x 9060851685 x 1812177751 x 393957879 x 38755
Negative:
-1 x -305350645-5 x -61070129-23 x -13276115-115 x -2655223-337 x -906085-1685 x -181217-7751 x -39395-7879 x -38755
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 305,350,645, 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 | 305,350,645 | |
| -1 | -305,350,645 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 305,350,645.
Example:
1 x 305,350,645 = 305,350,645
and
-1 x -305,350,645 = 305,350,645
Notice both answers equal 305,350,645
With that explanation out of the way, let's continue. Next, we take the number 305,350,645 and divide it by 2:
305,350,645 ÷ 2 = 152,675,322.5
If the quotient is a whole number, then 2 and 152,675,322.5 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 | 305,350,645 | |
| -1 | -305,350,645 |
Now, we try dividing 305,350,645 by 3:
305,350,645 ÷ 3 = 101,783,548.3333
If the quotient is a whole number, then 3 and 101,783,548.3333 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 | 305,350,645 | |
| -1 | -305,350,645 |
Let's try dividing by 4:
305,350,645 ÷ 4 = 76,337,661.25
If the quotient is a whole number, then 4 and 76,337,661.25 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 | 305,350,645 | |
| -1 | 305,350,645 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 337 | 1,685 | 7,751 | 7,879 | 38,755 | 39,395 | 181,217 | 906,085 | 2,655,223 | 13,276,115 | 61,070,129 | 305,350,645 |
| -1 | -5 | -23 | -115 | -337 | -1,685 | -7,751 | -7,879 | -38,755 | -39,395 | -181,217 | -906,085 | -2,655,223 | -13,276,115 | -61,070,129 | -305,350,645 |
Here are some more numbers to try:
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