Q: What are the factor combinations of the number 1,221,007?
A:
Positive:
1 x 1221007257 x 4751
Negative:
-1 x -1221007-257 x -4751
A:
Positive:
1 x 1221007257 x 4751
Negative:
-1 x -1221007-257 x -4751
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 1,221,007, 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 | 1,221,007 | |
-1 | -1,221,007 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,221,007.
Example:
1 x 1,221,007 = 1,221,007
and
-1 x -1,221,007 = 1,221,007
Notice both answers equal 1,221,007
With that explanation out of the way, let's continue. Next, we take the number 1,221,007 and divide it by 2:
1,221,007 ÷ 2 = 610,503.5
If the quotient is a whole number, then 2 and 610,503.5 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 | 1,221,007 | |
-1 | -1,221,007 |
Now, we try dividing 1,221,007 by 3:
1,221,007 ÷ 3 = 407,002.3333
If the quotient is a whole number, then 3 and 407,002.3333 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 | 1,221,007 | |
-1 | -1,221,007 |
Let's try dividing by 4:
1,221,007 ÷ 4 = 305,251.75
If the quotient is a whole number, then 4 and 305,251.75 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 | 1,221,007 | |
-1 | 1,221,007 |
If you did it right, you will end up with this table:
1 | 257 | 4,751 | 1,221,007 |
-1 | -257 | -4,751 | -1,221,007 |
Here are some more numbers to try:
Try the factor calculator