A:
Positive:
1 x 18634555 x 37269111 x 16940517 x 10961555 x 3388185 x 21923187 x 9965935 x 1993
Negative:
-1 x -1863455-5 x -372691-11 x -169405-17 x -109615-55 x -33881-85 x -21923-187 x -9965-935 x -1993
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 1,863,455, 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 | 1,863,455 | |
| -1 | -1,863,455 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,863,455.
Example:
1 x 1,863,455 = 1,863,455
and
-1 x -1,863,455 = 1,863,455
Notice both answers equal 1,863,455
With that explanation out of the way, let's continue. Next, we take the number 1,863,455 and divide it by 2:
1,863,455 ÷ 2 = 931,727.5
If the quotient is a whole number, then 2 and 931,727.5 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 | 1,863,455 | |
| -1 | -1,863,455 |
Now, we try dividing 1,863,455 by 3:
1,863,455 ÷ 3 = 621,151.6667
If the quotient is a whole number, then 3 and 621,151.6667 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 | 1,863,455 | |
| -1 | -1,863,455 |
Let's try dividing by 4:
1,863,455 ÷ 4 = 465,863.75
If the quotient is a whole number, then 4 and 465,863.75 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 | 1,863,455 | |
| -1 | 1,863,455 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 17 | 55 | 85 | 187 | 935 | 1,993 | 9,965 | 21,923 | 33,881 | 109,615 | 169,405 | 372,691 | 1,863,455 |
| -1 | -5 | -11 | -17 | -55 | -85 | -187 | -935 | -1,993 | -9,965 | -21,923 | -33,881 | -109,615 | -169,405 | -372,691 | -1,863,455 |
Here are some more numbers to try:
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