Q: What are the factor combinations of the number 32,131,615?

 A:
Positive:   1 x 321316155 x 642632317 x 189009585 x 378019
Negative: -1 x -32131615-5 x -6426323-17 x -1890095-85 x -378019


How do I find the factor combinations of the number 32,131,615?

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 32,131,615, 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 32,131,615
-1 -32,131,615

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 32,131,615.

Example:
1 x 32,131,615 = 32,131,615
and
-1 x -32,131,615 = 32,131,615
Notice both answers equal 32,131,615

With that explanation out of the way, let's continue. Next, we take the number 32,131,615 and divide it by 2:

32,131,615 ÷ 2 = 16,065,807.5

If the quotient is a whole number, then 2 and 16,065,807.5 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 32,131,615
-1 -32,131,615

Now, we try dividing 32,131,615 by 3:

32,131,615 ÷ 3 = 10,710,538.3333

If the quotient is a whole number, then 3 and 10,710,538.3333 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 32,131,615
-1 -32,131,615

Let's try dividing by 4:

32,131,615 ÷ 4 = 8,032,903.75

If the quotient is a whole number, then 4 and 8,032,903.75 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 32,131,615
-1 32,131,615
Keep dividing by the next highest number until you cannot divide anymore.

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

151785378,0191,890,0956,426,32332,131,615
-1-5-17-85-378,019-1,890,095-6,426,323-32,131,615

More Examples

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