A:
Positive:
1 x 5422421455 x 10844842929 x 18698005145 x 37396011867 x 2904352003 x 2707159335 x 5808710015 x 54143
Negative:
-1 x -542242145-5 x -108448429-29 x -18698005-145 x -3739601-1867 x -290435-2003 x -270715-9335 x -58087-10015 x -54143
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 542,242,145, 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 | 542,242,145 | |
| -1 | -542,242,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 542,242,145.
Example:
1 x 542,242,145 = 542,242,145
and
-1 x -542,242,145 = 542,242,145
Notice both answers equal 542,242,145
With that explanation out of the way, let's continue. Next, we take the number 542,242,145 and divide it by 2:
542,242,145 ÷ 2 = 271,121,072.5
If the quotient is a whole number, then 2 and 271,121,072.5 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 | 542,242,145 | |
| -1 | -542,242,145 |
Now, we try dividing 542,242,145 by 3:
542,242,145 ÷ 3 = 180,747,381.6667
If the quotient is a whole number, then 3 and 180,747,381.6667 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 | 542,242,145 | |
| -1 | -542,242,145 |
Let's try dividing by 4:
542,242,145 ÷ 4 = 135,560,536.25
If the quotient is a whole number, then 4 and 135,560,536.25 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 | 542,242,145 | |
| -1 | 542,242,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 1,867 | 2,003 | 9,335 | 10,015 | 54,143 | 58,087 | 270,715 | 290,435 | 3,739,601 | 18,698,005 | 108,448,429 | 542,242,145 |
| -1 | -5 | -29 | -145 | -1,867 | -2,003 | -9,335 | -10,015 | -54,143 | -58,087 | -270,715 | -290,435 | -3,739,601 | -18,698,005 | -108,448,429 | -542,242,145 |
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