A:
Positive:
1 x 18138355 x 36276719 x 9546561 x 2973595 x 19093305 x 5947313 x 57951159 x 1565
Negative:
-1 x -1813835-5 x -362767-19 x -95465-61 x -29735-95 x -19093-305 x -5947-313 x -5795-1159 x -1565
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 1,813,835, 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 | 1,813,835 | |
| -1 | -1,813,835 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,813,835.
Example:
1 x 1,813,835 = 1,813,835
and
-1 x -1,813,835 = 1,813,835
Notice both answers equal 1,813,835
With that explanation out of the way, let's continue. Next, we take the number 1,813,835 and divide it by 2:
1,813,835 ÷ 2 = 906,917.5
If the quotient is a whole number, then 2 and 906,917.5 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 | 1,813,835 | |
| -1 | -1,813,835 |
Now, we try dividing 1,813,835 by 3:
1,813,835 ÷ 3 = 604,611.6667
If the quotient is a whole number, then 3 and 604,611.6667 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 | 1,813,835 | |
| -1 | -1,813,835 |
Let's try dividing by 4:
1,813,835 ÷ 4 = 453,458.75
If the quotient is a whole number, then 4 and 453,458.75 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 | 1,813,835 | |
| -1 | 1,813,835 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 61 | 95 | 305 | 313 | 1,159 | 1,565 | 5,795 | 5,947 | 19,093 | 29,735 | 95,465 | 362,767 | 1,813,835 |
| -1 | -5 | -19 | -61 | -95 | -305 | -313 | -1,159 | -1,565 | -5,795 | -5,947 | -19,093 | -29,735 | -95,465 | -362,767 | -1,813,835 |
Here are some more numbers to try:
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