A:
Positive:
1 x 3062480311 x 278407317 x 1801459187 x 163769389 x 78727421 x 727434279 x 71574631 x 6613
Negative:
-1 x -30624803-11 x -2784073-17 x -1801459-187 x -163769-389 x -78727-421 x -72743-4279 x -7157-4631 x -6613
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 30,624,803, 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 | 30,624,803 | |
| -1 | -30,624,803 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,624,803.
Example:
1 x 30,624,803 = 30,624,803
and
-1 x -30,624,803 = 30,624,803
Notice both answers equal 30,624,803
With that explanation out of the way, let's continue. Next, we take the number 30,624,803 and divide it by 2:
30,624,803 ÷ 2 = 15,312,401.5
If the quotient is a whole number, then 2 and 15,312,401.5 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 | 30,624,803 | |
| -1 | -30,624,803 |
Now, we try dividing 30,624,803 by 3:
30,624,803 ÷ 3 = 10,208,267.6667
If the quotient is a whole number, then 3 and 10,208,267.6667 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 | 30,624,803 | |
| -1 | -30,624,803 |
Let's try dividing by 4:
30,624,803 ÷ 4 = 7,656,200.75
If the quotient is a whole number, then 4 and 7,656,200.75 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 | 30,624,803 | |
| -1 | 30,624,803 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 187 | 389 | 421 | 4,279 | 4,631 | 6,613 | 7,157 | 72,743 | 78,727 | 163,769 | 1,801,459 | 2,784,073 | 30,624,803 |
| -1 | -11 | -17 | -187 | -389 | -421 | -4,279 | -4,631 | -6,613 | -7,157 | -72,743 | -78,727 | -163,769 | -1,801,459 | -2,784,073 | -30,624,803 |
Here are some more numbers to try:
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