A:
Positive:
1 x 302735155 x 605470317 x 178079531 x 97656585 x 356159155 x 195313527 x 574452635 x 11489
Negative:
-1 x -30273515-5 x -6054703-17 x -1780795-31 x -976565-85 x -356159-155 x -195313-527 x -57445-2635 x -11489
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 30,273,515, 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 | 30,273,515 | |
| -1 | -30,273,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,273,515.
Example:
1 x 30,273,515 = 30,273,515
and
-1 x -30,273,515 = 30,273,515
Notice both answers equal 30,273,515
With that explanation out of the way, let's continue. Next, we take the number 30,273,515 and divide it by 2:
30,273,515 ÷ 2 = 15,136,757.5
If the quotient is a whole number, then 2 and 15,136,757.5 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 | 30,273,515 | |
| -1 | -30,273,515 |
Now, we try dividing 30,273,515 by 3:
30,273,515 ÷ 3 = 10,091,171.6667
If the quotient is a whole number, then 3 and 10,091,171.6667 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 | 30,273,515 | |
| -1 | -30,273,515 |
Let's try dividing by 4:
30,273,515 ÷ 4 = 7,568,378.75
If the quotient is a whole number, then 4 and 7,568,378.75 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 | 30,273,515 | |
| -1 | 30,273,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 31 | 85 | 155 | 527 | 2,635 | 11,489 | 57,445 | 195,313 | 356,159 | 976,565 | 1,780,795 | 6,054,703 | 30,273,515 |
| -1 | -5 | -17 | -31 | -85 | -155 | -527 | -2,635 | -11,489 | -57,445 | -195,313 | -356,159 | -976,565 | -1,780,795 | -6,054,703 | -30,273,515 |
Here are some more numbers to try:
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