A:
Positive:
1 x 421341055 x 842682113 x 324108565 x 648217
Negative:
-1 x -42134105-5 x -8426821-13 x -3241085-65 x -648217
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 42,134,105, 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 | 42,134,105 | |
| -1 | -42,134,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,134,105.
Example:
1 x 42,134,105 = 42,134,105
and
-1 x -42,134,105 = 42,134,105
Notice both answers equal 42,134,105
With that explanation out of the way, let's continue. Next, we take the number 42,134,105 and divide it by 2:
42,134,105 ÷ 2 = 21,067,052.5
If the quotient is a whole number, then 2 and 21,067,052.5 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 | 42,134,105 | |
| -1 | -42,134,105 |
Now, we try dividing 42,134,105 by 3:
42,134,105 ÷ 3 = 14,044,701.6667
If the quotient is a whole number, then 3 and 14,044,701.6667 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 | 42,134,105 | |
| -1 | -42,134,105 |
Let's try dividing by 4:
42,134,105 ÷ 4 = 10,533,526.25
If the quotient is a whole number, then 4 and 10,533,526.25 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 | 42,134,105 | |
| -1 | 42,134,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 648,217 | 3,241,085 | 8,426,821 | 42,134,105 |
| -1 | -5 | -13 | -65 | -648,217 | -3,241,085 | -8,426,821 | -42,134,105 |
Here are some more numbers to try:
Try the factor calculator