A:
Positive:
1 x 1563360477 x 2233372119 x 8228213133 x 1175459157 x 9957711099 x 1422532983 x 524097487 x 20881
Negative:
-1 x -156336047-7 x -22333721-19 x -8228213-133 x -1175459-157 x -995771-1099 x -142253-2983 x -52409-7487 x -20881
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 156,336,047, 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 | 156,336,047 | |
| -1 | -156,336,047 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 156,336,047.
Example:
1 x 156,336,047 = 156,336,047
and
-1 x -156,336,047 = 156,336,047
Notice both answers equal 156,336,047
With that explanation out of the way, let's continue. Next, we take the number 156,336,047 and divide it by 2:
156,336,047 ÷ 2 = 78,168,023.5
If the quotient is a whole number, then 2 and 78,168,023.5 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 | 156,336,047 | |
| -1 | -156,336,047 |
Now, we try dividing 156,336,047 by 3:
156,336,047 ÷ 3 = 52,112,015.6667
If the quotient is a whole number, then 3 and 52,112,015.6667 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 | 156,336,047 | |
| -1 | -156,336,047 |
Let's try dividing by 4:
156,336,047 ÷ 4 = 39,084,011.75
If the quotient is a whole number, then 4 and 39,084,011.75 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 | 156,336,047 | |
| -1 | 156,336,047 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 133 | 157 | 1,099 | 2,983 | 7,487 | 20,881 | 52,409 | 142,253 | 995,771 | 1,175,459 | 8,228,213 | 22,333,721 | 156,336,047 |
| -1 | -7 | -19 | -133 | -157 | -1,099 | -2,983 | -7,487 | -20,881 | -52,409 | -142,253 | -995,771 | -1,175,459 | -8,228,213 | -22,333,721 | -156,336,047 |
Here are some more numbers to try:
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