A:
Positive:
1 x 3150466155 x 6300932313 x 2423435565 x 4846871103 x 3058705515 x 6117411339 x 2352856695 x 47057
Negative:
-1 x -315046615-5 x -63009323-13 x -24234355-65 x -4846871-103 x -3058705-515 x -611741-1339 x -235285-6695 x -47057
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 315,046,615, 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 | 315,046,615 | |
| -1 | -315,046,615 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 315,046,615.
Example:
1 x 315,046,615 = 315,046,615
and
-1 x -315,046,615 = 315,046,615
Notice both answers equal 315,046,615
With that explanation out of the way, let's continue. Next, we take the number 315,046,615 and divide it by 2:
315,046,615 ÷ 2 = 157,523,307.5
If the quotient is a whole number, then 2 and 157,523,307.5 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 | 315,046,615 | |
| -1 | -315,046,615 |
Now, we try dividing 315,046,615 by 3:
315,046,615 ÷ 3 = 105,015,538.3333
If the quotient is a whole number, then 3 and 105,015,538.3333 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 | 315,046,615 | |
| -1 | -315,046,615 |
Let's try dividing by 4:
315,046,615 ÷ 4 = 78,761,653.75
If the quotient is a whole number, then 4 and 78,761,653.75 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 | 315,046,615 | |
| -1 | 315,046,615 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 103 | 515 | 1,339 | 6,695 | 47,057 | 235,285 | 611,741 | 3,058,705 | 4,846,871 | 24,234,355 | 63,009,323 | 315,046,615 |
| -1 | -5 | -13 | -65 | -103 | -515 | -1,339 | -6,695 | -47,057 | -235,285 | -611,741 | -3,058,705 | -4,846,871 | -24,234,355 | -63,009,323 | -315,046,615 |
Here are some more numbers to try:
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