A:
Positive:
1 x 1421425397 x 2030607711 x 1292204977 x 184600797 x 1465387679 x 2093411067 x 1332177469 x 19031
Negative:
-1 x -142142539-7 x -20306077-11 x -12922049-77 x -1846007-97 x -1465387-679 x -209341-1067 x -133217-7469 x -19031
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 142,142,539, 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 | 142,142,539 | |
| -1 | -142,142,539 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 142,142,539.
Example:
1 x 142,142,539 = 142,142,539
and
-1 x -142,142,539 = 142,142,539
Notice both answers equal 142,142,539
With that explanation out of the way, let's continue. Next, we take the number 142,142,539 and divide it by 2:
142,142,539 ÷ 2 = 71,071,269.5
If the quotient is a whole number, then 2 and 71,071,269.5 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 | 142,142,539 | |
| -1 | -142,142,539 |
Now, we try dividing 142,142,539 by 3:
142,142,539 ÷ 3 = 47,380,846.3333
If the quotient is a whole number, then 3 and 47,380,846.3333 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 | 142,142,539 | |
| -1 | -142,142,539 |
Let's try dividing by 4:
142,142,539 ÷ 4 = 35,535,634.75
If the quotient is a whole number, then 4 and 35,535,634.75 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 | 142,142,539 | |
| -1 | 142,142,539 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 97 | 679 | 1,067 | 7,469 | 19,031 | 133,217 | 209,341 | 1,465,387 | 1,846,007 | 12,922,049 | 20,306,077 | 142,142,539 |
| -1 | -7 | -11 | -77 | -97 | -679 | -1,067 | -7,469 | -19,031 | -133,217 | -209,341 | -1,465,387 | -1,846,007 | -12,922,049 | -20,306,077 | -142,142,539 |
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