A:
Positive:
1 x 303203455 x 606406911 x 275639555 x 551279541 x 560451019 x 297552705 x 112095095 x 5951
Negative:
-1 x -30320345-5 x -6064069-11 x -2756395-55 x -551279-541 x -56045-1019 x -29755-2705 x -11209-5095 x -5951
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 30,320,345, 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 | 30,320,345 | |
| -1 | -30,320,345 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,320,345.
Example:
1 x 30,320,345 = 30,320,345
and
-1 x -30,320,345 = 30,320,345
Notice both answers equal 30,320,345
With that explanation out of the way, let's continue. Next, we take the number 30,320,345 and divide it by 2:
30,320,345 ÷ 2 = 15,160,172.5
If the quotient is a whole number, then 2 and 15,160,172.5 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 | 30,320,345 | |
| -1 | -30,320,345 |
Now, we try dividing 30,320,345 by 3:
30,320,345 ÷ 3 = 10,106,781.6667
If the quotient is a whole number, then 3 and 10,106,781.6667 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 | 30,320,345 | |
| -1 | -30,320,345 |
Let's try dividing by 4:
30,320,345 ÷ 4 = 7,580,086.25
If the quotient is a whole number, then 4 and 7,580,086.25 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 | 30,320,345 | |
| -1 | 30,320,345 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 541 | 1,019 | 2,705 | 5,095 | 5,951 | 11,209 | 29,755 | 56,045 | 551,279 | 2,756,395 | 6,064,069 | 30,320,345 |
| -1 | -5 | -11 | -55 | -541 | -1,019 | -2,705 | -5,095 | -5,951 | -11,209 | -29,755 | -56,045 | -551,279 | -2,756,395 | -6,064,069 | -30,320,345 |
Here are some more numbers to try:
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