A:
Positive:
1 x 18303055 x 36606117 x 10766561 x 3000585 x 21533305 x 6001353 x 51851037 x 1765
Negative:
-1 x -1830305-5 x -366061-17 x -107665-61 x -30005-85 x -21533-305 x -6001-353 x -5185-1037 x -1765
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 1,830,305, 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 | 1,830,305 | |
| -1 | -1,830,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,830,305.
Example:
1 x 1,830,305 = 1,830,305
and
-1 x -1,830,305 = 1,830,305
Notice both answers equal 1,830,305
With that explanation out of the way, let's continue. Next, we take the number 1,830,305 and divide it by 2:
1,830,305 ÷ 2 = 915,152.5
If the quotient is a whole number, then 2 and 915,152.5 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 | 1,830,305 | |
| -1 | -1,830,305 |
Now, we try dividing 1,830,305 by 3:
1,830,305 ÷ 3 = 610,101.6667
If the quotient is a whole number, then 3 and 610,101.6667 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 | 1,830,305 | |
| -1 | -1,830,305 |
Let's try dividing by 4:
1,830,305 ÷ 4 = 457,576.25
If the quotient is a whole number, then 4 and 457,576.25 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 | 1,830,305 | |
| -1 | 1,830,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 61 | 85 | 305 | 353 | 1,037 | 1,765 | 5,185 | 6,001 | 21,533 | 30,005 | 107,665 | 366,061 | 1,830,305 |
| -1 | -5 | -17 | -61 | -85 | -305 | -353 | -1,037 | -1,765 | -5,185 | -6,001 | -21,533 | -30,005 | -107,665 | -366,061 | -1,830,305 |
Here are some more numbers to try:
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