A:
Positive:
1 x 4213421311 x 383038373 x 577181137 x 307549383 x 110011803 x 524711507 x 279594213 x 10001
Negative:
-1 x -42134213-11 x -3830383-73 x -577181-137 x -307549-383 x -110011-803 x -52471-1507 x -27959-4213 x -10001
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 42,134,213, 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 | 42,134,213 | |
| -1 | -42,134,213 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,134,213.
Example:
1 x 42,134,213 = 42,134,213
and
-1 x -42,134,213 = 42,134,213
Notice both answers equal 42,134,213
With that explanation out of the way, let's continue. Next, we take the number 42,134,213 and divide it by 2:
42,134,213 ÷ 2 = 21,067,106.5
If the quotient is a whole number, then 2 and 21,067,106.5 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 | 42,134,213 | |
| -1 | -42,134,213 |
Now, we try dividing 42,134,213 by 3:
42,134,213 ÷ 3 = 14,044,737.6667
If the quotient is a whole number, then 3 and 14,044,737.6667 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 | 42,134,213 | |
| -1 | -42,134,213 |
Let's try dividing by 4:
42,134,213 ÷ 4 = 10,533,553.25
If the quotient is a whole number, then 4 and 10,533,553.25 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 | 42,134,213 | |
| -1 | 42,134,213 |
If you did it right, you will end up with this table:
| 1 | 11 | 73 | 137 | 383 | 803 | 1,507 | 4,213 | 10,001 | 27,959 | 52,471 | 110,011 | 307,549 | 577,181 | 3,830,383 | 42,134,213 |
| -1 | -11 | -73 | -137 | -383 | -803 | -1,507 | -4,213 | -10,001 | -27,959 | -52,471 | -110,011 | -307,549 | -577,181 | -3,830,383 | -42,134,213 |
Here are some more numbers to try:
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