A:
Positive:
1 x 320218855 x 64043777 x 457455535 x 91491143 x 744695215 x 148939301 x 1063851505 x 21277
Negative:
-1 x -32021885-5 x -6404377-7 x -4574555-35 x -914911-43 x -744695-215 x -148939-301 x -106385-1505 x -21277
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 32,021,885, 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 | 32,021,885 | |
| -1 | -32,021,885 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 32,021,885.
Example:
1 x 32,021,885 = 32,021,885
and
-1 x -32,021,885 = 32,021,885
Notice both answers equal 32,021,885
With that explanation out of the way, let's continue. Next, we take the number 32,021,885 and divide it by 2:
32,021,885 ÷ 2 = 16,010,942.5
If the quotient is a whole number, then 2 and 16,010,942.5 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 | 32,021,885 | |
| -1 | -32,021,885 |
Now, we try dividing 32,021,885 by 3:
32,021,885 ÷ 3 = 10,673,961.6667
If the quotient is a whole number, then 3 and 10,673,961.6667 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 | 32,021,885 | |
| -1 | -32,021,885 |
Let's try dividing by 4:
32,021,885 ÷ 4 = 8,005,471.25
If the quotient is a whole number, then 4 and 8,005,471.25 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 | 32,021,885 | |
| -1 | 32,021,885 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 43 | 215 | 301 | 1,505 | 21,277 | 106,385 | 148,939 | 744,695 | 914,911 | 4,574,555 | 6,404,377 | 32,021,885 |
| -1 | -5 | -7 | -35 | -43 | -215 | -301 | -1,505 | -21,277 | -106,385 | -148,939 | -744,695 | -914,911 | -4,574,555 | -6,404,377 | -32,021,885 |
Here are some more numbers to try:
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