Q: What are the factor combinations of the number 33,123,629?

 A:
Positive:   1 x 331236297 x 473194711 x 301123977 x 430177121 x 273749847 x 39107
Negative: -1 x -33123629-7 x -4731947-11 x -3011239-77 x -430177-121 x -273749-847 x -39107


How do I find the factor combinations of the number 33,123,629?

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 33,123,629, 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 33,123,629
-1 -33,123,629

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 33,123,629.

Example:
1 x 33,123,629 = 33,123,629
and
-1 x -33,123,629 = 33,123,629
Notice both answers equal 33,123,629

With that explanation out of the way, let's continue. Next, we take the number 33,123,629 and divide it by 2:

33,123,629 ÷ 2 = 16,561,814.5

If the quotient is a whole number, then 2 and 16,561,814.5 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 33,123,629
-1 -33,123,629

Now, we try dividing 33,123,629 by 3:

33,123,629 ÷ 3 = 11,041,209.6667

If the quotient is a whole number, then 3 and 11,041,209.6667 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 33,123,629
-1 -33,123,629

Let's try dividing by 4:

33,123,629 ÷ 4 = 8,280,907.25

If the quotient is a whole number, then 4 and 8,280,907.25 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 33,123,629
-1 33,123,629
Keep dividing by the next highest number until you cannot divide anymore.

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

17117712184739,107273,749430,1773,011,2394,731,94733,123,629
-1-7-11-77-121-847-39,107-273,749-430,177-3,011,239-4,731,947-33,123,629

More Examples

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