Q: What are the factor combinations of the number 449?
A:
Positive:
1 x 449
Negative:
-1 x -449
A:
Positive:
1 x 449
Negative:
-1 x -449
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 449, 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 | 449 | |
| -1 | -449 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 449.
Example:
1 x 449 = 449
and
-1 x -449 = 449
Notice both answers equal 449
With that explanation out of the way, let's continue. Next, we take the number 449 and divide it by 2:
449 ÷ 2 = 224.5
If the quotient is a whole number, then 2 and 224.5 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 | 449 | |
| -1 | -449 |
Now, we try dividing 449 by 3:
449 ÷ 3 = 149.6667
If the quotient is a whole number, then 3 and 149.6667 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 | 449 | |
| -1 | -449 |
Let's try dividing by 4:
449 ÷ 4 = 112.25
If the quotient is a whole number, then 4 and 112.25 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 | 449 | |
| -1 | 449 |
If you did it right, you will end up with this table:
| 1 | 449 |
| -1 | -449 |
Here are some more numbers to try:
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