A:
Positive:
1 x 3240301555 x 6480603143 x 753558571 x 4563805215 x 1507117355 x 9127613053 x 10613515265 x 21227
Negative:
-1 x -324030155-5 x -64806031-43 x -7535585-71 x -4563805-215 x -1507117-355 x -912761-3053 x -106135-15265 x -21227
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 324,030,155, 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 | 324,030,155 | |
| -1 | -324,030,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 324,030,155.
Example:
1 x 324,030,155 = 324,030,155
and
-1 x -324,030,155 = 324,030,155
Notice both answers equal 324,030,155
With that explanation out of the way, let's continue. Next, we take the number 324,030,155 and divide it by 2:
324,030,155 ÷ 2 = 162,015,077.5
If the quotient is a whole number, then 2 and 162,015,077.5 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 | 324,030,155 | |
| -1 | -324,030,155 |
Now, we try dividing 324,030,155 by 3:
324,030,155 ÷ 3 = 108,010,051.6667
If the quotient is a whole number, then 3 and 108,010,051.6667 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 | 324,030,155 | |
| -1 | -324,030,155 |
Let's try dividing by 4:
324,030,155 ÷ 4 = 81,007,538.75
If the quotient is a whole number, then 4 and 81,007,538.75 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 | 324,030,155 | |
| -1 | 324,030,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 71 | 215 | 355 | 3,053 | 15,265 | 21,227 | 106,135 | 912,761 | 1,507,117 | 4,563,805 | 7,535,585 | 64,806,031 | 324,030,155 |
| -1 | -5 | -43 | -71 | -215 | -355 | -3,053 | -15,265 | -21,227 | -106,135 | -912,761 | -1,507,117 | -4,563,805 | -7,535,585 | -64,806,031 | -324,030,155 |
Here are some more numbers to try:
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