A:
Positive:
1 x 3058772577 x 4369675119 x 1609880349 x 624239353 x 5771269133 x 2299829371 x 824467931 x 3285471007 x 3037512597 x 1177816199 x 493437049 x 43393
Negative:
-1 x -305877257-7 x -43696751-19 x -16098803-49 x -6242393-53 x -5771269-133 x -2299829-371 x -824467-931 x -328547-1007 x -303751-2597 x -117781-6199 x -49343-7049 x -43393
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 305,877,257, 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 | 305,877,257 | |
| -1 | -305,877,257 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 305,877,257.
Example:
1 x 305,877,257 = 305,877,257
and
-1 x -305,877,257 = 305,877,257
Notice both answers equal 305,877,257
With that explanation out of the way, let's continue. Next, we take the number 305,877,257 and divide it by 2:
305,877,257 ÷ 2 = 152,938,628.5
If the quotient is a whole number, then 2 and 152,938,628.5 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 | 305,877,257 | |
| -1 | -305,877,257 |
Now, we try dividing 305,877,257 by 3:
305,877,257 ÷ 3 = 101,959,085.6667
If the quotient is a whole number, then 3 and 101,959,085.6667 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 | 305,877,257 | |
| -1 | -305,877,257 |
Let's try dividing by 4:
305,877,257 ÷ 4 = 76,469,314.25
If the quotient is a whole number, then 4 and 76,469,314.25 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 | 305,877,257 | |
| -1 | 305,877,257 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 49 | 53 | 133 | 371 | 931 | 1,007 | 2,597 | 6,199 | 7,049 | 43,393 | 49,343 | 117,781 | 303,751 | 328,547 | 824,467 | 2,299,829 | 5,771,269 | 6,242,393 | 16,098,803 | 43,696,751 | 305,877,257 |
| -1 | -7 | -19 | -49 | -53 | -133 | -371 | -931 | -1,007 | -2,597 | -6,199 | -7,049 | -43,393 | -49,343 | -117,781 | -303,751 | -328,547 | -824,467 | -2,299,829 | -5,771,269 | -6,242,393 | -16,098,803 | -43,696,751 | -305,877,257 |
Here are some more numbers to try:
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