A:
Positive:
1 x 3165138355 x 6330276711 x 2877398555 x 57547971319 x 2399654363 x 725456595 x 4799314509 x 21815
Negative:
-1 x -316513835-5 x -63302767-11 x -28773985-55 x -5754797-1319 x -239965-4363 x -72545-6595 x -47993-14509 x -21815
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 316,513,835, 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 | 316,513,835 | |
| -1 | -316,513,835 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 316,513,835.
Example:
1 x 316,513,835 = 316,513,835
and
-1 x -316,513,835 = 316,513,835
Notice both answers equal 316,513,835
With that explanation out of the way, let's continue. Next, we take the number 316,513,835 and divide it by 2:
316,513,835 ÷ 2 = 158,256,917.5
If the quotient is a whole number, then 2 and 158,256,917.5 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 | 316,513,835 | |
| -1 | -316,513,835 |
Now, we try dividing 316,513,835 by 3:
316,513,835 ÷ 3 = 105,504,611.6667
If the quotient is a whole number, then 3 and 105,504,611.6667 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 | 316,513,835 | |
| -1 | -316,513,835 |
Let's try dividing by 4:
316,513,835 ÷ 4 = 79,128,458.75
If the quotient is a whole number, then 4 and 79,128,458.75 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 | 316,513,835 | |
| -1 | 316,513,835 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 1,319 | 4,363 | 6,595 | 14,509 | 21,815 | 47,993 | 72,545 | 239,965 | 5,754,797 | 28,773,985 | 63,302,767 | 316,513,835 |
| -1 | -5 | -11 | -55 | -1,319 | -4,363 | -6,595 | -14,509 | -21,815 | -47,993 | -72,545 | -239,965 | -5,754,797 | -28,773,985 | -63,302,767 | -316,513,835 |
Here are some more numbers to try:
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