A:
Positive:
1 x 855333855 x 171066777 x 1221905535 x 2443811467 x 1831552335 x 366313269 x 261655233 x 16345
Negative:
-1 x -85533385-5 x -17106677-7 x -12219055-35 x -2443811-467 x -183155-2335 x -36631-3269 x -26165-5233 x -16345
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 85,533,385, 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 | 85,533,385 | |
| -1 | -85,533,385 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 85,533,385.
Example:
1 x 85,533,385 = 85,533,385
and
-1 x -85,533,385 = 85,533,385
Notice both answers equal 85,533,385
With that explanation out of the way, let's continue. Next, we take the number 85,533,385 and divide it by 2:
85,533,385 ÷ 2 = 42,766,692.5
If the quotient is a whole number, then 2 and 42,766,692.5 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 | 85,533,385 | |
| -1 | -85,533,385 |
Now, we try dividing 85,533,385 by 3:
85,533,385 ÷ 3 = 28,511,128.3333
If the quotient is a whole number, then 3 and 28,511,128.3333 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 | 85,533,385 | |
| -1 | -85,533,385 |
Let's try dividing by 4:
85,533,385 ÷ 4 = 21,383,346.25
If the quotient is a whole number, then 4 and 21,383,346.25 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 | 85,533,385 | |
| -1 | 85,533,385 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 467 | 2,335 | 3,269 | 5,233 | 16,345 | 26,165 | 36,631 | 183,155 | 2,443,811 | 12,219,055 | 17,106,677 | 85,533,385 |
| -1 | -5 | -7 | -35 | -467 | -2,335 | -3,269 | -5,233 | -16,345 | -26,165 | -36,631 | -183,155 | -2,443,811 | -12,219,055 | -17,106,677 | -85,533,385 |
Here are some more numbers to try:
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