A:
Positive:
1 x 3165288855 x 6330577719 x 1665941595 x 3331883163 x 1941895815 x 3883793097 x 10220515485 x 20441
Negative:
-1 x -316528885-5 x -63305777-19 x -16659415-95 x -3331883-163 x -1941895-815 x -388379-3097 x -102205-15485 x -20441
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 316,528,885, 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 | 316,528,885 | |
| -1 | -316,528,885 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 316,528,885.
Example:
1 x 316,528,885 = 316,528,885
and
-1 x -316,528,885 = 316,528,885
Notice both answers equal 316,528,885
With that explanation out of the way, let's continue. Next, we take the number 316,528,885 and divide it by 2:
316,528,885 ÷ 2 = 158,264,442.5
If the quotient is a whole number, then 2 and 158,264,442.5 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 | 316,528,885 | |
| -1 | -316,528,885 |
Now, we try dividing 316,528,885 by 3:
316,528,885 ÷ 3 = 105,509,628.3333
If the quotient is a whole number, then 3 and 105,509,628.3333 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 | 316,528,885 | |
| -1 | -316,528,885 |
Let's try dividing by 4:
316,528,885 ÷ 4 = 79,132,221.25
If the quotient is a whole number, then 4 and 79,132,221.25 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 | 316,528,885 | |
| -1 | 316,528,885 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 163 | 815 | 3,097 | 15,485 | 20,441 | 102,205 | 388,379 | 1,941,895 | 3,331,883 | 16,659,415 | 63,305,777 | 316,528,885 |
| -1 | -5 | -19 | -95 | -163 | -815 | -3,097 | -15,485 | -20,441 | -102,205 | -388,379 | -1,941,895 | -3,331,883 | -16,659,415 | -63,305,777 | -316,528,885 |
Here are some more numbers to try:
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