Q: What are the factor combinations of the number 150,661,015?
A:
Positive:
1 x 1506610155 x 30132203
Negative:
-1 x -150661015-5 x -30132203
A:
Positive:
1 x 1506610155 x 30132203
Negative:
-1 x -150661015-5 x -30132203
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 150,661,015, 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 | 150,661,015 | |
-1 | -150,661,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 150,661,015.
Example:
1 x 150,661,015 = 150,661,015
and
-1 x -150,661,015 = 150,661,015
Notice both answers equal 150,661,015
With that explanation out of the way, let's continue. Next, we take the number 150,661,015 and divide it by 2:
150,661,015 ÷ 2 = 75,330,507.5
If the quotient is a whole number, then 2 and 75,330,507.5 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 | 150,661,015 | |
-1 | -150,661,015 |
Now, we try dividing 150,661,015 by 3:
150,661,015 ÷ 3 = 50,220,338.3333
If the quotient is a whole number, then 3 and 50,220,338.3333 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 | 150,661,015 | |
-1 | -150,661,015 |
Let's try dividing by 4:
150,661,015 ÷ 4 = 37,665,253.75
If the quotient is a whole number, then 4 and 37,665,253.75 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 | 150,661,015 | |
-1 | 150,661,015 |
If you did it right, you will end up with this table:
1 | 5 | 30,132,203 | 150,661,015 |
-1 | -5 | -30,132,203 | -150,661,015 |
Here are some more numbers to try:
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