A:
Positive:
1 x 80038855 x 160077723 x 34799579 x 101315115 x 69599395 x 20263881 x 90851817 x 4405
Negative:
-1 x -8003885-5 x -1600777-23 x -347995-79 x -101315-115 x -69599-395 x -20263-881 x -9085-1817 x -4405
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 8,003,885, 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 | 8,003,885 | |
| -1 | -8,003,885 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,003,885.
Example:
1 x 8,003,885 = 8,003,885
and
-1 x -8,003,885 = 8,003,885
Notice both answers equal 8,003,885
With that explanation out of the way, let's continue. Next, we take the number 8,003,885 and divide it by 2:
8,003,885 ÷ 2 = 4,001,942.5
If the quotient is a whole number, then 2 and 4,001,942.5 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 | 8,003,885 | |
| -1 | -8,003,885 |
Now, we try dividing 8,003,885 by 3:
8,003,885 ÷ 3 = 2,667,961.6667
If the quotient is a whole number, then 3 and 2,667,961.6667 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 | 8,003,885 | |
| -1 | -8,003,885 |
Let's try dividing by 4:
8,003,885 ÷ 4 = 2,000,971.25
If the quotient is a whole number, then 4 and 2,000,971.25 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 | 8,003,885 | |
| -1 | 8,003,885 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 79 | 115 | 395 | 881 | 1,817 | 4,405 | 9,085 | 20,263 | 69,599 | 101,315 | 347,995 | 1,600,777 | 8,003,885 |
| -1 | -5 | -23 | -79 | -115 | -395 | -881 | -1,817 | -4,405 | -9,085 | -20,263 | -69,599 | -101,315 | -347,995 | -1,600,777 | -8,003,885 |
Here are some more numbers to try:
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