A:
Positive:
1 x 8155755 x 16311517 x 4797519 x 4292525 x 3262385 x 959595 x 8585101 x 8075323 x 2525425 x 1919475 x 1717505 x 1615
Negative:
-1 x -815575-5 x -163115-17 x -47975-19 x -42925-25 x -32623-85 x -9595-95 x -8585-101 x -8075-323 x -2525-425 x -1919-475 x -1717-505 x -1615
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 815,575, 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 | 815,575 | |
| -1 | -815,575 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 815,575.
Example:
1 x 815,575 = 815,575
and
-1 x -815,575 = 815,575
Notice both answers equal 815,575
With that explanation out of the way, let's continue. Next, we take the number 815,575 and divide it by 2:
815,575 ÷ 2 = 407,787.5
If the quotient is a whole number, then 2 and 407,787.5 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 | 815,575 | |
| -1 | -815,575 |
Now, we try dividing 815,575 by 3:
815,575 ÷ 3 = 271,858.3333
If the quotient is a whole number, then 3 and 271,858.3333 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 | 815,575 | |
| -1 | -815,575 |
Let's try dividing by 4:
815,575 ÷ 4 = 203,893.75
If the quotient is a whole number, then 4 and 203,893.75 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 | 815,575 | |
| -1 | 815,575 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 19 | 25 | 85 | 95 | 101 | 323 | 425 | 475 | 505 | 1,615 | 1,717 | 1,919 | 2,525 | 8,075 | 8,585 | 9,595 | 32,623 | 42,925 | 47,975 | 163,115 | 815,575 |
| -1 | -5 | -17 | -19 | -25 | -85 | -95 | -101 | -323 | -425 | -475 | -505 | -1,615 | -1,717 | -1,919 | -2,525 | -8,075 | -8,585 | -9,595 | -32,623 | -42,925 | -47,975 | -163,115 | -815,575 |
Here are some more numbers to try:
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