A:
Positive:
1 x 305135397 x 435907729 x 105219183 x 367633203 x 150313581 x 525191811 x 168492407 x 12677
Negative:
-1 x -30513539-7 x -4359077-29 x -1052191-83 x -367633-203 x -150313-581 x -52519-1811 x -16849-2407 x -12677
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 30,513,539, 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 | 30,513,539 | |
| -1 | -30,513,539 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,513,539.
Example:
1 x 30,513,539 = 30,513,539
and
-1 x -30,513,539 = 30,513,539
Notice both answers equal 30,513,539
With that explanation out of the way, let's continue. Next, we take the number 30,513,539 and divide it by 2:
30,513,539 ÷ 2 = 15,256,769.5
If the quotient is a whole number, then 2 and 15,256,769.5 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 | 30,513,539 | |
| -1 | -30,513,539 |
Now, we try dividing 30,513,539 by 3:
30,513,539 ÷ 3 = 10,171,179.6667
If the quotient is a whole number, then 3 and 10,171,179.6667 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 | 30,513,539 | |
| -1 | -30,513,539 |
Let's try dividing by 4:
30,513,539 ÷ 4 = 7,628,384.75
If the quotient is a whole number, then 4 and 7,628,384.75 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 | 30,513,539 | |
| -1 | 30,513,539 |
If you did it right, you will end up with this table:
| 1 | 7 | 29 | 83 | 203 | 581 | 1,811 | 2,407 | 12,677 | 16,849 | 52,519 | 150,313 | 367,633 | 1,052,191 | 4,359,077 | 30,513,539 |
| -1 | -7 | -29 | -83 | -203 | -581 | -1,811 | -2,407 | -12,677 | -16,849 | -52,519 | -150,313 | -367,633 | -1,052,191 | -4,359,077 | -30,513,539 |
Here are some more numbers to try:
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