A:
Positive:
1 x 281662555 x 563325113 x 216663565 x 433327577 x 48815751 x 375052885 x 97633755 x 7501
Negative:
-1 x -28166255-5 x -5633251-13 x -2166635-65 x -433327-577 x -48815-751 x -37505-2885 x -9763-3755 x -7501
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 28,166,255, 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 | 28,166,255 | |
| -1 | -28,166,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,166,255.
Example:
1 x 28,166,255 = 28,166,255
and
-1 x -28,166,255 = 28,166,255
Notice both answers equal 28,166,255
With that explanation out of the way, let's continue. Next, we take the number 28,166,255 and divide it by 2:
28,166,255 ÷ 2 = 14,083,127.5
If the quotient is a whole number, then 2 and 14,083,127.5 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 | 28,166,255 | |
| -1 | -28,166,255 |
Now, we try dividing 28,166,255 by 3:
28,166,255 ÷ 3 = 9,388,751.6667
If the quotient is a whole number, then 3 and 9,388,751.6667 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 | 28,166,255 | |
| -1 | -28,166,255 |
Let's try dividing by 4:
28,166,255 ÷ 4 = 7,041,563.75
If the quotient is a whole number, then 4 and 7,041,563.75 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 | 28,166,255 | |
| -1 | 28,166,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 577 | 751 | 2,885 | 3,755 | 7,501 | 9,763 | 37,505 | 48,815 | 433,327 | 2,166,635 | 5,633,251 | 28,166,255 |
| -1 | -5 | -13 | -65 | -577 | -751 | -2,885 | -3,755 | -7,501 | -9,763 | -37,505 | -48,815 | -433,327 | -2,166,635 | -5,633,251 | -28,166,255 |
Here are some more numbers to try:
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