A:
Positive:
1 x 178730755 x 357461511 x 162482525 x 71492355 x 324965103 x 173525275 x 64993515 x 34705631 x 283251133 x 157752575 x 69413155 x 5665
Negative:
-1 x -17873075-5 x -3574615-11 x -1624825-25 x -714923-55 x -324965-103 x -173525-275 x -64993-515 x -34705-631 x -28325-1133 x -15775-2575 x -6941-3155 x -5665
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 17,873,075, 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 | 17,873,075 | |
| -1 | -17,873,075 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 17,873,075.
Example:
1 x 17,873,075 = 17,873,075
and
-1 x -17,873,075 = 17,873,075
Notice both answers equal 17,873,075
With that explanation out of the way, let's continue. Next, we take the number 17,873,075 and divide it by 2:
17,873,075 ÷ 2 = 8,936,537.5
If the quotient is a whole number, then 2 and 8,936,537.5 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 | 17,873,075 | |
| -1 | -17,873,075 |
Now, we try dividing 17,873,075 by 3:
17,873,075 ÷ 3 = 5,957,691.6667
If the quotient is a whole number, then 3 and 5,957,691.6667 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 | 17,873,075 | |
| -1 | -17,873,075 |
Let's try dividing by 4:
17,873,075 ÷ 4 = 4,468,268.75
If the quotient is a whole number, then 4 and 4,468,268.75 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 | 17,873,075 | |
| -1 | 17,873,075 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 55 | 103 | 275 | 515 | 631 | 1,133 | 2,575 | 3,155 | 5,665 | 6,941 | 15,775 | 28,325 | 34,705 | 64,993 | 173,525 | 324,965 | 714,923 | 1,624,825 | 3,574,615 | 17,873,075 |
| -1 | -5 | -11 | -25 | -55 | -103 | -275 | -515 | -631 | -1,133 | -2,575 | -3,155 | -5,665 | -6,941 | -15,775 | -28,325 | -34,705 | -64,993 | -173,525 | -324,965 | -714,923 | -1,624,825 | -3,574,615 | -17,873,075 |
Here are some more numbers to try:
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