Q: What are the factor combinations of the number 63,985?
A:
Positive:
1 x 639855 x 1279767 x 955191 x 335
Negative:
-1 x -63985-5 x -12797-67 x -955-191 x -335
A:
Positive:
1 x 639855 x 1279767 x 955191 x 335
Negative:
-1 x -63985-5 x -12797-67 x -955-191 x -335
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 63,985, 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 | 63,985 | |
-1 | -63,985 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 63,985.
Example:
1 x 63,985 = 63,985
and
-1 x -63,985 = 63,985
Notice both answers equal 63,985
With that explanation out of the way, let's continue. Next, we take the number 63,985 and divide it by 2:
63,985 ÷ 2 = 31,992.5
If the quotient is a whole number, then 2 and 31,992.5 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 | 63,985 | |
-1 | -63,985 |
Now, we try dividing 63,985 by 3:
63,985 ÷ 3 = 21,328.3333
If the quotient is a whole number, then 3 and 21,328.3333 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 | 63,985 | |
-1 | -63,985 |
Let's try dividing by 4:
63,985 ÷ 4 = 15,996.25
If the quotient is a whole number, then 4 and 15,996.25 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 | 63,985 | |
-1 | 63,985 |
If you did it right, you will end up with this table:
1 | 5 | 67 | 191 | 335 | 955 | 12,797 | 63,985 |
-1 | -5 | -67 | -191 | -335 | -955 | -12,797 | -63,985 |
Here are some more numbers to try:
Try the factor calculator