A:
Positive:
1 x 385578713 x 29659917 x 22681173 x 52819221 x 17447239 x 16133949 x 40631241 x 3107
Negative:
-1 x -3855787-13 x -296599-17 x -226811-73 x -52819-221 x -17447-239 x -16133-949 x -4063-1241 x -3107
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 3,855,787, 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 | 3,855,787 | |
| -1 | -3,855,787 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,855,787.
Example:
1 x 3,855,787 = 3,855,787
and
-1 x -3,855,787 = 3,855,787
Notice both answers equal 3,855,787
With that explanation out of the way, let's continue. Next, we take the number 3,855,787 and divide it by 2:
3,855,787 ÷ 2 = 1,927,893.5
If the quotient is a whole number, then 2 and 1,927,893.5 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 | 3,855,787 | |
| -1 | -3,855,787 |
Now, we try dividing 3,855,787 by 3:
3,855,787 ÷ 3 = 1,285,262.3333
If the quotient is a whole number, then 3 and 1,285,262.3333 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 | 3,855,787 | |
| -1 | -3,855,787 |
Let's try dividing by 4:
3,855,787 ÷ 4 = 963,946.75
If the quotient is a whole number, then 4 and 963,946.75 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 | 3,855,787 | |
| -1 | 3,855,787 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 73 | 221 | 239 | 949 | 1,241 | 3,107 | 4,063 | 16,133 | 17,447 | 52,819 | 226,811 | 296,599 | 3,855,787 |
| -1 | -13 | -17 | -73 | -221 | -239 | -949 | -1,241 | -3,107 | -4,063 | -16,133 | -17,447 | -52,819 | -226,811 | -296,599 | -3,855,787 |
Here are some more numbers to try:
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