A:
Positive:
1 x 4871237 x 6958913 x 3747153 x 919191 x 5353101 x 4823371 x 1313689 x 707
Negative:
-1 x -487123-7 x -69589-13 x -37471-53 x -9191-91 x -5353-101 x -4823-371 x -1313-689 x -707
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 487,123, 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 | 487,123 | |
| -1 | -487,123 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 487,123.
Example:
1 x 487,123 = 487,123
and
-1 x -487,123 = 487,123
Notice both answers equal 487,123
With that explanation out of the way, let's continue. Next, we take the number 487,123 and divide it by 2:
487,123 ÷ 2 = 243,561.5
If the quotient is a whole number, then 2 and 243,561.5 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 | 487,123 | |
| -1 | -487,123 |
Now, we try dividing 487,123 by 3:
487,123 ÷ 3 = 162,374.3333
If the quotient is a whole number, then 3 and 162,374.3333 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 | 487,123 | |
| -1 | -487,123 |
Let's try dividing by 4:
487,123 ÷ 4 = 121,780.75
If the quotient is a whole number, then 4 and 121,780.75 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 | 487,123 | |
| -1 | 487,123 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 53 | 91 | 101 | 371 | 689 | 707 | 1,313 | 4,823 | 5,353 | 9,191 | 37,471 | 69,589 | 487,123 |
| -1 | -7 | -13 | -53 | -91 | -101 | -371 | -689 | -707 | -1,313 | -4,823 | -5,353 | -9,191 | -37,471 | -69,589 | -487,123 |
Here are some more numbers to try:
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