A:
Positive:
1 x 3033781311 x 275798319 x 1596727209 x 145157379 x 80047383 x 792114169 x 72774213 x 7201
Negative:
-1 x -30337813-11 x -2757983-19 x -1596727-209 x -145157-379 x -80047-383 x -79211-4169 x -7277-4213 x -7201
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 30,337,813, 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 | 30,337,813 | |
| -1 | -30,337,813 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,337,813.
Example:
1 x 30,337,813 = 30,337,813
and
-1 x -30,337,813 = 30,337,813
Notice both answers equal 30,337,813
With that explanation out of the way, let's continue. Next, we take the number 30,337,813 and divide it by 2:
30,337,813 ÷ 2 = 15,168,906.5
If the quotient is a whole number, then 2 and 15,168,906.5 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 | 30,337,813 | |
| -1 | -30,337,813 |
Now, we try dividing 30,337,813 by 3:
30,337,813 ÷ 3 = 10,112,604.3333
If the quotient is a whole number, then 3 and 10,112,604.3333 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 | 30,337,813 | |
| -1 | -30,337,813 |
Let's try dividing by 4:
30,337,813 ÷ 4 = 7,584,453.25
If the quotient is a whole number, then 4 and 7,584,453.25 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 | 30,337,813 | |
| -1 | 30,337,813 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 209 | 379 | 383 | 4,169 | 4,213 | 7,201 | 7,277 | 79,211 | 80,047 | 145,157 | 1,596,727 | 2,757,983 | 30,337,813 |
| -1 | -11 | -19 | -209 | -379 | -383 | -4,169 | -4,213 | -7,201 | -7,277 | -79,211 | -80,047 | -145,157 | -1,596,727 | -2,757,983 | -30,337,813 |
Here are some more numbers to try:
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