Q: What are the factor combinations of the number 12,145,171?
A:
Positive:
1 x 1214517129 x 418799
Negative:
-1 x -12145171-29 x -418799
A:
Positive:
1 x 1214517129 x 418799
Negative:
-1 x -12145171-29 x -418799
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 12,145,171, 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 | 12,145,171 | |
-1 | -12,145,171 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,145,171.
Example:
1 x 12,145,171 = 12,145,171
and
-1 x -12,145,171 = 12,145,171
Notice both answers equal 12,145,171
With that explanation out of the way, let's continue. Next, we take the number 12,145,171 and divide it by 2:
12,145,171 ÷ 2 = 6,072,585.5
If the quotient is a whole number, then 2 and 6,072,585.5 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 | 12,145,171 | |
-1 | -12,145,171 |
Now, we try dividing 12,145,171 by 3:
12,145,171 ÷ 3 = 4,048,390.3333
If the quotient is a whole number, then 3 and 4,048,390.3333 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 | 12,145,171 | |
-1 | -12,145,171 |
Let's try dividing by 4:
12,145,171 ÷ 4 = 3,036,292.75
If the quotient is a whole number, then 4 and 3,036,292.75 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 | 12,145,171 | |
-1 | 12,145,171 |
If you did it right, you will end up with this table:
1 | 29 | 418,799 | 12,145,171 |
-1 | -29 | -418,799 | -12,145,171 |
Here are some more numbers to try:
Try the factor calculator