Q: What are the factor combinations of the number 30,022,015?

 A:
Positive:   1 x 300220155 x 600440323 x 1305305115 x 261061
Negative: -1 x -30022015-5 x -6004403-23 x -1305305-115 x -261061


How do I find the factor combinations of the number 30,022,015?

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 30,022,015, it is easier to work with a table - it's called factoring from the outside in.

Outside in Factoring

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 30,022,015
-1 -30,022,015

Why are the negative numbers included?

When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,022,015.

Example:
1 x 30,022,015 = 30,022,015
and
-1 x -30,022,015 = 30,022,015
Notice both answers equal 30,022,015

With that explanation out of the way, let's continue. Next, we take the number 30,022,015 and divide it by 2:

30,022,015 ÷ 2 = 15,011,007.5

If the quotient is a whole number, then 2 and 15,011,007.5 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 30,022,015
-1 -30,022,015

Now, we try dividing 30,022,015 by 3:

30,022,015 ÷ 3 = 10,007,338.3333

If the quotient is a whole number, then 3 and 10,007,338.3333 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 30,022,015
-1 -30,022,015

Let's try dividing by 4:

30,022,015 ÷ 4 = 7,505,503.75

If the quotient is a whole number, then 4 and 7,505,503.75 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 30,022,015
-1 30,022,015
Keep dividing by the next highest number until you cannot divide anymore.

If you did it right, you will end up with this table:

1523115261,0611,305,3056,004,40330,022,015
-1-5-23-115-261,061-1,305,305-6,004,403-30,022,015

More Examples

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