A:
Positive:
1 x 3077800341 x 75068371 x 43349397 x 317299109 x 2823672911 x 105733977 x 77394469 x 6887
Negative:
-1 x -30778003-41 x -750683-71 x -433493-97 x -317299-109 x -282367-2911 x -10573-3977 x -7739-4469 x -6887
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 30,778,003, 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 | 30,778,003 | |
| -1 | -30,778,003 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,778,003.
Example:
1 x 30,778,003 = 30,778,003
and
-1 x -30,778,003 = 30,778,003
Notice both answers equal 30,778,003
With that explanation out of the way, let's continue. Next, we take the number 30,778,003 and divide it by 2:
30,778,003 ÷ 2 = 15,389,001.5
If the quotient is a whole number, then 2 and 15,389,001.5 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 | 30,778,003 | |
| -1 | -30,778,003 |
Now, we try dividing 30,778,003 by 3:
30,778,003 ÷ 3 = 10,259,334.3333
If the quotient is a whole number, then 3 and 10,259,334.3333 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 | 30,778,003 | |
| -1 | -30,778,003 |
Let's try dividing by 4:
30,778,003 ÷ 4 = 7,694,500.75
If the quotient is a whole number, then 4 and 7,694,500.75 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 | 30,778,003 | |
| -1 | 30,778,003 |
If you did it right, you will end up with this table:
| 1 | 41 | 71 | 97 | 109 | 2,911 | 3,977 | 4,469 | 6,887 | 7,739 | 10,573 | 282,367 | 317,299 | 433,493 | 750,683 | 30,778,003 |
| -1 | -41 | -71 | -97 | -109 | -2,911 | -3,977 | -4,469 | -6,887 | -7,739 | -10,573 | -282,367 | -317,299 | -433,493 | -750,683 | -30,778,003 |
Here are some more numbers to try:
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