A:
Positive:
1 x 8381455 x 1676297 x 11973511 x 7619535 x 2394749 x 1710555 x 1523977 x 10885245 x 3421311 x 2695385 x 2177539 x 1555
Negative:
-1 x -838145-5 x -167629-7 x -119735-11 x -76195-35 x -23947-49 x -17105-55 x -15239-77 x -10885-245 x -3421-311 x -2695-385 x -2177-539 x -1555
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 838,145, 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 | 838,145 | |
| -1 | -838,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 838,145.
Example:
1 x 838,145 = 838,145
and
-1 x -838,145 = 838,145
Notice both answers equal 838,145
With that explanation out of the way, let's continue. Next, we take the number 838,145 and divide it by 2:
838,145 ÷ 2 = 419,072.5
If the quotient is a whole number, then 2 and 419,072.5 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 | 838,145 | |
| -1 | -838,145 |
Now, we try dividing 838,145 by 3:
838,145 ÷ 3 = 279,381.6667
If the quotient is a whole number, then 3 and 279,381.6667 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 | 838,145 | |
| -1 | -838,145 |
Let's try dividing by 4:
838,145 ÷ 4 = 209,536.25
If the quotient is a whole number, then 4 and 209,536.25 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 | 838,145 | |
| -1 | 838,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 49 | 55 | 77 | 245 | 311 | 385 | 539 | 1,555 | 2,177 | 2,695 | 3,421 | 10,885 | 15,239 | 17,105 | 23,947 | 76,195 | 119,735 | 167,629 | 838,145 |
| -1 | -5 | -7 | -11 | -35 | -49 | -55 | -77 | -245 | -311 | -385 | -539 | -1,555 | -2,177 | -2,695 | -3,421 | -10,885 | -15,239 | -17,105 | -23,947 | -76,195 | -119,735 | -167,629 | -838,145 |
Here are some more numbers to try:
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