A:
Positive:
1 x 2876827737 x 77752147 x 61209171 x 405187233 x 1234691739 x 165432627 x 109513337 x 8621
Negative:
-1 x -28768277-37 x -777521-47 x -612091-71 x -405187-233 x -123469-1739 x -16543-2627 x -10951-3337 x -8621
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 28,768,277, 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 | 28,768,277 | |
| -1 | -28,768,277 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,768,277.
Example:
1 x 28,768,277 = 28,768,277
and
-1 x -28,768,277 = 28,768,277
Notice both answers equal 28,768,277
With that explanation out of the way, let's continue. Next, we take the number 28,768,277 and divide it by 2:
28,768,277 ÷ 2 = 14,384,138.5
If the quotient is a whole number, then 2 and 14,384,138.5 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 | 28,768,277 | |
| -1 | -28,768,277 |
Now, we try dividing 28,768,277 by 3:
28,768,277 ÷ 3 = 9,589,425.6667
If the quotient is a whole number, then 3 and 9,589,425.6667 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 | 28,768,277 | |
| -1 | -28,768,277 |
Let's try dividing by 4:
28,768,277 ÷ 4 = 7,192,069.25
If the quotient is a whole number, then 4 and 7,192,069.25 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 | 28,768,277 | |
| -1 | 28,768,277 |
If you did it right, you will end up with this table:
| 1 | 37 | 47 | 71 | 233 | 1,739 | 2,627 | 3,337 | 8,621 | 10,951 | 16,543 | 123,469 | 405,187 | 612,091 | 777,521 | 28,768,277 |
| -1 | -37 | -47 | -71 | -233 | -1,739 | -2,627 | -3,337 | -8,621 | -10,951 | -16,543 | -123,469 | -405,187 | -612,091 | -777,521 | -28,768,277 |
Here are some more numbers to try:
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