A:
Positive:
1 x 3000032217 x 428576031987 x 15098313909 x 21569
Negative:
-1 x -300003221-7 x -42857603-1987 x -150983-13909 x -21569
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 300,003,221, 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 | 300,003,221 | |
| -1 | -300,003,221 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 300,003,221.
Example:
1 x 300,003,221 = 300,003,221
and
-1 x -300,003,221 = 300,003,221
Notice both answers equal 300,003,221
With that explanation out of the way, let's continue. Next, we take the number 300,003,221 and divide it by 2:
300,003,221 ÷ 2 = 150,001,610.5
If the quotient is a whole number, then 2 and 150,001,610.5 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 | 300,003,221 | |
| -1 | -300,003,221 |
Now, we try dividing 300,003,221 by 3:
300,003,221 ÷ 3 = 100,001,073.6667
If the quotient is a whole number, then 3 and 100,001,073.6667 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 | 300,003,221 | |
| -1 | -300,003,221 |
Let's try dividing by 4:
300,003,221 ÷ 4 = 75,000,805.25
If the quotient is a whole number, then 4 and 75,000,805.25 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 | 300,003,221 | |
| -1 | 300,003,221 |
If you did it right, you will end up with this table:
| 1 | 7 | 1,987 | 13,909 | 21,569 | 150,983 | 42,857,603 | 300,003,221 |
| -1 | -7 | -1,987 | -13,909 | -21,569 | -150,983 | -42,857,603 | -300,003,221 |
Here are some more numbers to try:
Try the factor calculator