A:
Positive:
1 x 3053552455 x 6107104913 x 2348886523 x 1327631565 x 4697773115 x 2655263299 x 10212551495 x 204251
Negative:
-1 x -305355245-5 x -61071049-13 x -23488865-23 x -13276315-65 x -4697773-115 x -2655263-299 x -1021255-1495 x -204251
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 305,355,245, 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 | 305,355,245 | |
| -1 | -305,355,245 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 305,355,245.
Example:
1 x 305,355,245 = 305,355,245
and
-1 x -305,355,245 = 305,355,245
Notice both answers equal 305,355,245
With that explanation out of the way, let's continue. Next, we take the number 305,355,245 and divide it by 2:
305,355,245 ÷ 2 = 152,677,622.5
If the quotient is a whole number, then 2 and 152,677,622.5 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 | 305,355,245 | |
| -1 | -305,355,245 |
Now, we try dividing 305,355,245 by 3:
305,355,245 ÷ 3 = 101,785,081.6667
If the quotient is a whole number, then 3 and 101,785,081.6667 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 | 305,355,245 | |
| -1 | -305,355,245 |
Let's try dividing by 4:
305,355,245 ÷ 4 = 76,338,811.25
If the quotient is a whole number, then 4 and 76,338,811.25 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 | 305,355,245 | |
| -1 | 305,355,245 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 23 | 65 | 115 | 299 | 1,495 | 204,251 | 1,021,255 | 2,655,263 | 4,697,773 | 13,276,315 | 23,488,865 | 61,071,049 | 305,355,245 |
| -1 | -5 | -13 | -23 | -65 | -115 | -299 | -1,495 | -204,251 | -1,021,255 | -2,655,263 | -4,697,773 | -13,276,315 | -23,488,865 | -61,071,049 | -305,355,245 |
Here are some more numbers to try:
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