A:
Positive:
1 x 3154433155 x 6308866311 x 2867666537 x 852549555 x 5735333185 x 1705099407 x 7750452035 x 155009
Negative:
-1 x -315443315-5 x -63088663-11 x -28676665-37 x -8525495-55 x -5735333-185 x -1705099-407 x -775045-2035 x -155009
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 315,443,315, 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 | 315,443,315 | |
| -1 | -315,443,315 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 315,443,315.
Example:
1 x 315,443,315 = 315,443,315
and
-1 x -315,443,315 = 315,443,315
Notice both answers equal 315,443,315
With that explanation out of the way, let's continue. Next, we take the number 315,443,315 and divide it by 2:
315,443,315 ÷ 2 = 157,721,657.5
If the quotient is a whole number, then 2 and 157,721,657.5 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 | 315,443,315 | |
| -1 | -315,443,315 |
Now, we try dividing 315,443,315 by 3:
315,443,315 ÷ 3 = 105,147,771.6667
If the quotient is a whole number, then 3 and 105,147,771.6667 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 | 315,443,315 | |
| -1 | -315,443,315 |
Let's try dividing by 4:
315,443,315 ÷ 4 = 78,860,828.75
If the quotient is a whole number, then 4 and 78,860,828.75 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 | 315,443,315 | |
| -1 | 315,443,315 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 37 | 55 | 185 | 407 | 2,035 | 155,009 | 775,045 | 1,705,099 | 5,735,333 | 8,525,495 | 28,676,665 | 63,088,663 | 315,443,315 |
| -1 | -5 | -11 | -37 | -55 | -185 | -407 | -2,035 | -155,009 | -775,045 | -1,705,099 | -5,735,333 | -8,525,495 | -28,676,665 | -63,088,663 | -315,443,315 |
Here are some more numbers to try:
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