A:
Positive:
1 x 1504342497 x 2149060779 x 1904231199 x 755951553 x 2720331367 x 1100471393 x 1079939569 x 15721
Negative:
-1 x -150434249-7 x -21490607-79 x -1904231-199 x -755951-553 x -272033-1367 x -110047-1393 x -107993-9569 x -15721
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 150,434,249, 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 | 150,434,249 | |
| -1 | -150,434,249 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 150,434,249.
Example:
1 x 150,434,249 = 150,434,249
and
-1 x -150,434,249 = 150,434,249
Notice both answers equal 150,434,249
With that explanation out of the way, let's continue. Next, we take the number 150,434,249 and divide it by 2:
150,434,249 ÷ 2 = 75,217,124.5
If the quotient is a whole number, then 2 and 75,217,124.5 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 | 150,434,249 | |
| -1 | -150,434,249 |
Now, we try dividing 150,434,249 by 3:
150,434,249 ÷ 3 = 50,144,749.6667
If the quotient is a whole number, then 3 and 50,144,749.6667 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 | 150,434,249 | |
| -1 | -150,434,249 |
Let's try dividing by 4:
150,434,249 ÷ 4 = 37,608,562.25
If the quotient is a whole number, then 4 and 37,608,562.25 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 | 150,434,249 | |
| -1 | 150,434,249 |
If you did it right, you will end up with this table:
| 1 | 7 | 79 | 199 | 553 | 1,367 | 1,393 | 9,569 | 15,721 | 107,993 | 110,047 | 272,033 | 755,951 | 1,904,231 | 21,490,607 | 150,434,249 |
| -1 | -7 | -79 | -199 | -553 | -1,367 | -1,393 | -9,569 | -15,721 | -107,993 | -110,047 | -272,033 | -755,951 | -1,904,231 | -21,490,607 | -150,434,249 |
Here are some more numbers to try:
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