A:
Positive:
1 x 53124448931 x 1713691943 x 12354523137 x 38776971333 x 3985332909 x 1826214247 x 1250875891 x 90179
Negative:
-1 x -531244489-31 x -17136919-43 x -12354523-137 x -3877697-1333 x -398533-2909 x -182621-4247 x -125087-5891 x -90179
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 531,244,489, 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 | 531,244,489 | |
| -1 | -531,244,489 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 531,244,489.
Example:
1 x 531,244,489 = 531,244,489
and
-1 x -531,244,489 = 531,244,489
Notice both answers equal 531,244,489
With that explanation out of the way, let's continue. Next, we take the number 531,244,489 and divide it by 2:
531,244,489 ÷ 2 = 265,622,244.5
If the quotient is a whole number, then 2 and 265,622,244.5 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 | 531,244,489 | |
| -1 | -531,244,489 |
Now, we try dividing 531,244,489 by 3:
531,244,489 ÷ 3 = 177,081,496.3333
If the quotient is a whole number, then 3 and 177,081,496.3333 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 | 531,244,489 | |
| -1 | -531,244,489 |
Let's try dividing by 4:
531,244,489 ÷ 4 = 132,811,122.25
If the quotient is a whole number, then 4 and 132,811,122.25 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 | 531,244,489 | |
| -1 | 531,244,489 |
If you did it right, you will end up with this table:
| 1 | 31 | 43 | 137 | 1,333 | 2,909 | 4,247 | 5,891 | 90,179 | 125,087 | 182,621 | 398,533 | 3,877,697 | 12,354,523 | 17,136,919 | 531,244,489 |
| -1 | -31 | -43 | -137 | -1,333 | -2,909 | -4,247 | -5,891 | -90,179 | -125,087 | -182,621 | -398,533 | -3,877,697 | -12,354,523 | -17,136,919 | -531,244,489 |
Here are some more numbers to try:
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