A:
Positive:
1 x 6634255 x 1326857 x 9477517 x 3902525 x 2653735 x 1895585 x 7805119 x 5575175 x 3791223 x 2975425 x 1561595 x 1115
Negative:
-1 x -663425-5 x -132685-7 x -94775-17 x -39025-25 x -26537-35 x -18955-85 x -7805-119 x -5575-175 x -3791-223 x -2975-425 x -1561-595 x -1115
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 663,425, 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 | 663,425 | |
| -1 | -663,425 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 663,425.
Example:
1 x 663,425 = 663,425
and
-1 x -663,425 = 663,425
Notice both answers equal 663,425
With that explanation out of the way, let's continue. Next, we take the number 663,425 and divide it by 2:
663,425 ÷ 2 = 331,712.5
If the quotient is a whole number, then 2 and 331,712.5 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 | 663,425 | |
| -1 | -663,425 |
Now, we try dividing 663,425 by 3:
663,425 ÷ 3 = 221,141.6667
If the quotient is a whole number, then 3 and 221,141.6667 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 | 663,425 | |
| -1 | -663,425 |
Let's try dividing by 4:
663,425 ÷ 4 = 165,856.25
If the quotient is a whole number, then 4 and 165,856.25 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 | 663,425 | |
| -1 | 663,425 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 17 | 25 | 35 | 85 | 119 | 175 | 223 | 425 | 595 | 1,115 | 1,561 | 2,975 | 3,791 | 5,575 | 7,805 | 18,955 | 26,537 | 39,025 | 94,775 | 132,685 | 663,425 |
| -1 | -5 | -7 | -17 | -25 | -35 | -85 | -119 | -175 | -223 | -425 | -595 | -1,115 | -1,561 | -2,975 | -3,791 | -5,575 | -7,805 | -18,955 | -26,537 | -39,025 | -94,775 | -132,685 | -663,425 |
Here are some more numbers to try:
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