A:
Positive:
1 x 303242155 x 606484341 x 73961553 x 572155205 x 147923265 x 1144312173 x 139552791 x 10865
Negative:
-1 x -30324215-5 x -6064843-41 x -739615-53 x -572155-205 x -147923-265 x -114431-2173 x -13955-2791 x -10865
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 30,324,215, 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 | 30,324,215 | |
| -1 | -30,324,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,324,215.
Example:
1 x 30,324,215 = 30,324,215
and
-1 x -30,324,215 = 30,324,215
Notice both answers equal 30,324,215
With that explanation out of the way, let's continue. Next, we take the number 30,324,215 and divide it by 2:
30,324,215 ÷ 2 = 15,162,107.5
If the quotient is a whole number, then 2 and 15,162,107.5 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 | 30,324,215 | |
| -1 | -30,324,215 |
Now, we try dividing 30,324,215 by 3:
30,324,215 ÷ 3 = 10,108,071.6667
If the quotient is a whole number, then 3 and 10,108,071.6667 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 | 30,324,215 | |
| -1 | -30,324,215 |
Let's try dividing by 4:
30,324,215 ÷ 4 = 7,581,053.75
If the quotient is a whole number, then 4 and 7,581,053.75 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 | 30,324,215 | |
| -1 | 30,324,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 41 | 53 | 205 | 265 | 2,173 | 2,791 | 10,865 | 13,955 | 114,431 | 147,923 | 572,155 | 739,615 | 6,064,843 | 30,324,215 |
| -1 | -5 | -41 | -53 | -205 | -265 | -2,173 | -2,791 | -10,865 | -13,955 | -114,431 | -147,923 | -572,155 | -739,615 | -6,064,843 | -30,324,215 |
Here are some more numbers to try:
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