Q: What are the factor combinations of the number 577?
A:
Positive:
1 x 577
Negative:
-1 x -577
A:
Positive:
1 x 577
Negative:
-1 x -577
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 577, 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 | 577 | |
| -1 | -577 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 577.
Example:
1 x 577 = 577
and
-1 x -577 = 577
Notice both answers equal 577
With that explanation out of the way, let's continue. Next, we take the number 577 and divide it by 2:
577 ÷ 2 = 288.5
If the quotient is a whole number, then 2 and 288.5 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 | 577 | |
| -1 | -577 |
Now, we try dividing 577 by 3:
577 ÷ 3 = 192.3333
If the quotient is a whole number, then 3 and 192.3333 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 | 577 | |
| -1 | -577 |
Let's try dividing by 4:
577 ÷ 4 = 144.25
If the quotient is a whole number, then 4 and 144.25 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 | 577 | |
| -1 | 577 |
If you did it right, you will end up with this table:
| 1 | 577 |
| -1 | -577 |
Here are some more numbers to try:
Try the factor calculator