A:
Positive:
1 x 283408555 x 566817179 x 358745157 x 180515395 x 71749457 x 62015785 x 361032285 x 12403
Negative:
-1 x -28340855-5 x -5668171-79 x -358745-157 x -180515-395 x -71749-457 x -62015-785 x -36103-2285 x -12403
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 28,340,855, 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 | 28,340,855 | |
| -1 | -28,340,855 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,340,855.
Example:
1 x 28,340,855 = 28,340,855
and
-1 x -28,340,855 = 28,340,855
Notice both answers equal 28,340,855
With that explanation out of the way, let's continue. Next, we take the number 28,340,855 and divide it by 2:
28,340,855 ÷ 2 = 14,170,427.5
If the quotient is a whole number, then 2 and 14,170,427.5 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 | 28,340,855 | |
| -1 | -28,340,855 |
Now, we try dividing 28,340,855 by 3:
28,340,855 ÷ 3 = 9,446,951.6667
If the quotient is a whole number, then 3 and 9,446,951.6667 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 | 28,340,855 | |
| -1 | -28,340,855 |
Let's try dividing by 4:
28,340,855 ÷ 4 = 7,085,213.75
If the quotient is a whole number, then 4 and 7,085,213.75 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 | 28,340,855 | |
| -1 | 28,340,855 |
If you did it right, you will end up with this table:
| 1 | 5 | 79 | 157 | 395 | 457 | 785 | 2,285 | 12,403 | 36,103 | 62,015 | 71,749 | 180,515 | 358,745 | 5,668,171 | 28,340,855 |
| -1 | -5 | -79 | -157 | -395 | -457 | -785 | -2,285 | -12,403 | -36,103 | -62,015 | -71,749 | -180,515 | -358,745 | -5,668,171 | -28,340,855 |
Here are some more numbers to try:
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