A:
Positive:
1 x 283312755 x 56662557 x 404732525 x 113325135 x 80946597 x 292075175 x 161893485 x 58415679 x 417251669 x 169752425 x 116833395 x 8345
Negative:
-1 x -28331275-5 x -5666255-7 x -4047325-25 x -1133251-35 x -809465-97 x -292075-175 x -161893-485 x -58415-679 x -41725-1669 x -16975-2425 x -11683-3395 x -8345
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 28,331,275, 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 | 28,331,275 | |
| -1 | -28,331,275 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,331,275.
Example:
1 x 28,331,275 = 28,331,275
and
-1 x -28,331,275 = 28,331,275
Notice both answers equal 28,331,275
With that explanation out of the way, let's continue. Next, we take the number 28,331,275 and divide it by 2:
28,331,275 ÷ 2 = 14,165,637.5
If the quotient is a whole number, then 2 and 14,165,637.5 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 | 28,331,275 | |
| -1 | -28,331,275 |
Now, we try dividing 28,331,275 by 3:
28,331,275 ÷ 3 = 9,443,758.3333
If the quotient is a whole number, then 3 and 9,443,758.3333 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 | 28,331,275 | |
| -1 | -28,331,275 |
Let's try dividing by 4:
28,331,275 ÷ 4 = 7,082,818.75
If the quotient is a whole number, then 4 and 7,082,818.75 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 | 28,331,275 | |
| -1 | 28,331,275 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 97 | 175 | 485 | 679 | 1,669 | 2,425 | 3,395 | 8,345 | 11,683 | 16,975 | 41,725 | 58,415 | 161,893 | 292,075 | 809,465 | 1,133,251 | 4,047,325 | 5,666,255 | 28,331,275 |
| -1 | -5 | -7 | -25 | -35 | -97 | -175 | -485 | -679 | -1,669 | -2,425 | -3,395 | -8,345 | -11,683 | -16,975 | -41,725 | -58,415 | -161,893 | -292,075 | -809,465 | -1,133,251 | -4,047,325 | -5,666,255 | -28,331,275 |
Here are some more numbers to try:
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