A:
Positive:
1 x 3051441355 x 6102882717 x 1794965585 x 3589931197 x 1548955985 x 3097913349 x 9111516745 x 18223
Negative:
-1 x -305144135-5 x -61028827-17 x -17949655-85 x -3589931-197 x -1548955-985 x -309791-3349 x -91115-16745 x -18223
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 305,144,135, 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 | 305,144,135 | |
| -1 | -305,144,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 305,144,135.
Example:
1 x 305,144,135 = 305,144,135
and
-1 x -305,144,135 = 305,144,135
Notice both answers equal 305,144,135
With that explanation out of the way, let's continue. Next, we take the number 305,144,135 and divide it by 2:
305,144,135 ÷ 2 = 152,572,067.5
If the quotient is a whole number, then 2 and 152,572,067.5 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 | 305,144,135 | |
| -1 | -305,144,135 |
Now, we try dividing 305,144,135 by 3:
305,144,135 ÷ 3 = 101,714,711.6667
If the quotient is a whole number, then 3 and 101,714,711.6667 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 | 305,144,135 | |
| -1 | -305,144,135 |
Let's try dividing by 4:
305,144,135 ÷ 4 = 76,286,033.75
If the quotient is a whole number, then 4 and 76,286,033.75 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 | 305,144,135 | |
| -1 | 305,144,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 197 | 985 | 3,349 | 16,745 | 18,223 | 91,115 | 309,791 | 1,548,955 | 3,589,931 | 17,949,655 | 61,028,827 | 305,144,135 |
| -1 | -5 | -17 | -85 | -197 | -985 | -3,349 | -16,745 | -18,223 | -91,115 | -309,791 | -1,548,955 | -3,589,931 | -17,949,655 | -61,028,827 | -305,144,135 |
Here are some more numbers to try:
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