A:
Positive:
1 x 3064622155 x 61292443113 x 2712055251 x 1220965565 x 5424111255 x 2441932161 x 14181510805 x 28363
Negative:
-1 x -306462215-5 x -61292443-113 x -2712055-251 x -1220965-565 x -542411-1255 x -244193-2161 x -141815-10805 x -28363
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 306,462,215, 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 | 306,462,215 | |
| -1 | -306,462,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 306,462,215.
Example:
1 x 306,462,215 = 306,462,215
and
-1 x -306,462,215 = 306,462,215
Notice both answers equal 306,462,215
With that explanation out of the way, let's continue. Next, we take the number 306,462,215 and divide it by 2:
306,462,215 ÷ 2 = 153,231,107.5
If the quotient is a whole number, then 2 and 153,231,107.5 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 | 306,462,215 | |
| -1 | -306,462,215 |
Now, we try dividing 306,462,215 by 3:
306,462,215 ÷ 3 = 102,154,071.6667
If the quotient is a whole number, then 3 and 102,154,071.6667 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 | 306,462,215 | |
| -1 | -306,462,215 |
Let's try dividing by 4:
306,462,215 ÷ 4 = 76,615,553.75
If the quotient is a whole number, then 4 and 76,615,553.75 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 | 306,462,215 | |
| -1 | 306,462,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 113 | 251 | 565 | 1,255 | 2,161 | 10,805 | 28,363 | 141,815 | 244,193 | 542,411 | 1,220,965 | 2,712,055 | 61,292,443 | 306,462,215 |
| -1 | -5 | -113 | -251 | -565 | -1,255 | -2,161 | -10,805 | -28,363 | -141,815 | -244,193 | -542,411 | -1,220,965 | -2,712,055 | -61,292,443 | -306,462,215 |
Here are some more numbers to try:
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