A:
Positive:
1 x 180022855 x 36004577 x 257175535 x 51435183 x 216895415 x 43379581 x 309852905 x 6197
Negative:
-1 x -18002285-5 x -3600457-7 x -2571755-35 x -514351-83 x -216895-415 x -43379-581 x -30985-2905 x -6197
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 18,002,285, 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 | 18,002,285 | |
| -1 | -18,002,285 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,002,285.
Example:
1 x 18,002,285 = 18,002,285
and
-1 x -18,002,285 = 18,002,285
Notice both answers equal 18,002,285
With that explanation out of the way, let's continue. Next, we take the number 18,002,285 and divide it by 2:
18,002,285 ÷ 2 = 9,001,142.5
If the quotient is a whole number, then 2 and 9,001,142.5 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 | 18,002,285 | |
| -1 | -18,002,285 |
Now, we try dividing 18,002,285 by 3:
18,002,285 ÷ 3 = 6,000,761.6667
If the quotient is a whole number, then 3 and 6,000,761.6667 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 | 18,002,285 | |
| -1 | -18,002,285 |
Let's try dividing by 4:
18,002,285 ÷ 4 = 4,500,571.25
If the quotient is a whole number, then 4 and 4,500,571.25 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 | 18,002,285 | |
| -1 | 18,002,285 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 83 | 415 | 581 | 2,905 | 6,197 | 30,985 | 43,379 | 216,895 | 514,351 | 2,571,755 | 3,600,457 | 18,002,285 |
| -1 | -5 | -7 | -35 | -83 | -415 | -581 | -2,905 | -6,197 | -30,985 | -43,379 | -216,895 | -514,351 | -2,571,755 | -3,600,457 | -18,002,285 |
Here are some more numbers to try:
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