A:
Positive:
1 x 8013301877 x 11447574119 x 42175273133 x 6025039367 x 21834612569 x 3119236973 x 11491916417 x 48811
Negative:
-1 x -801330187-7 x -114475741-19 x -42175273-133 x -6025039-367 x -2183461-2569 x -311923-6973 x -114919-16417 x -48811
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 801,330,187, 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 | 801,330,187 | |
| -1 | -801,330,187 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 801,330,187.
Example:
1 x 801,330,187 = 801,330,187
and
-1 x -801,330,187 = 801,330,187
Notice both answers equal 801,330,187
With that explanation out of the way, let's continue. Next, we take the number 801,330,187 and divide it by 2:
801,330,187 ÷ 2 = 400,665,093.5
If the quotient is a whole number, then 2 and 400,665,093.5 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 | 801,330,187 | |
| -1 | -801,330,187 |
Now, we try dividing 801,330,187 by 3:
801,330,187 ÷ 3 = 267,110,062.3333
If the quotient is a whole number, then 3 and 267,110,062.3333 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 | 801,330,187 | |
| -1 | -801,330,187 |
Let's try dividing by 4:
801,330,187 ÷ 4 = 200,332,546.75
If the quotient is a whole number, then 4 and 200,332,546.75 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 | 801,330,187 | |
| -1 | 801,330,187 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 133 | 367 | 2,569 | 6,973 | 16,417 | 48,811 | 114,919 | 311,923 | 2,183,461 | 6,025,039 | 42,175,273 | 114,475,741 | 801,330,187 |
| -1 | -7 | -19 | -133 | -367 | -2,569 | -6,973 | -16,417 | -48,811 | -114,919 | -311,923 | -2,183,461 | -6,025,039 | -42,175,273 | -114,475,741 | -801,330,187 |
Here are some more numbers to try:
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