A:
Positive:
1 x 1497842 x 748923 x 499284 x 374466 x 249648 x 1872312 x 1248224 x 624179 x 1896158 x 948237 x 632316 x 474
Negative:
-1 x -149784-2 x -74892-3 x -49928-4 x -37446-6 x -24964-8 x -18723-12 x -12482-24 x -6241-79 x -1896-158 x -948-237 x -632-316 x -474
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 149,784, 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 | 149,784 | |
| -1 | -149,784 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 149,784.
Example:
1 x 149,784 = 149,784
and
-1 x -149,784 = 149,784
Notice both answers equal 149,784
With that explanation out of the way, let's continue. Next, we take the number 149,784 and divide it by 2:
149,784 ÷ 2 = 74,892
If the quotient is a whole number, then 2 and 74,892 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!
Here is what our table should look like at this step:
| 1 | 2 | 74,892 | 149,784 | |
| -1 | -2 | -74,892 | -149,784 |
Now, we try dividing 149,784 by 3:
149,784 ÷ 3 = 49,928
If the quotient is a whole number, then 3 and 49,928 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!
Here is what our table should look like at this step:
| 1 | 2 | 3 | 49,928 | 74,892 | 149,784 | |
| -1 | -2 | -3 | -49,928 | -74,892 | -149,784 |
Let's try dividing by 4:
149,784 ÷ 4 = 37,446
If the quotient is a whole number, then 4 and 37,446 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!
Here is what our table should look like at this step:
| 1 | 2 | 3 | 4 | 37,446 | 49,928 | 74,892 | 149,784 | |
| -1 | -2 | -3 | -4 | -37,446 | -49,928 | -74,892 | 149,784 |
If you did it right, you will end up with this table:
| 1 | 2 | 3 | 4 | 6 | 8 | 12 | 24 | 79 | 158 | 237 | 316 | 474 | 632 | 948 | 1,896 | 6,241 | 12,482 | 18,723 | 24,964 | 37,446 | 49,928 | 74,892 | 149,784 |
| -1 | -2 | -3 | -4 | -6 | -8 | -12 | -24 | -79 | -158 | -237 | -316 | -474 | -632 | -948 | -1,896 | -6,241 | -12,482 | -18,723 | -24,964 | -37,446 | -49,928 | -74,892 | -149,784 |
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