Q: What are the factor combinations of the number 2,012,101?

 A:
Positive:   1 x 20121017 x 28744313 x 15477791 x 22111
Negative: -1 x -2012101-7 x -287443-13 x -154777-91 x -22111


How do I find the factor combinations of the number 2,012,101?

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 2,012,101, 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 2,012,101
-1 -2,012,101

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 2,012,101.

Example:
1 x 2,012,101 = 2,012,101
and
-1 x -2,012,101 = 2,012,101
Notice both answers equal 2,012,101

With that explanation out of the way, let's continue. Next, we take the number 2,012,101 and divide it by 2:

2,012,101 ÷ 2 = 1,006,050.5

If the quotient is a whole number, then 2 and 1,006,050.5 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 2,012,101
-1 -2,012,101

Now, we try dividing 2,012,101 by 3:

2,012,101 ÷ 3 = 670,700.3333

If the quotient is a whole number, then 3 and 670,700.3333 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 2,012,101
-1 -2,012,101

Let's try dividing by 4:

2,012,101 ÷ 4 = 503,025.25

If the quotient is a whole number, then 4 and 503,025.25 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 2,012,101
-1 2,012,101
Keep dividing by the next highest number until you cannot divide anymore.

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

17139122,111154,777287,4432,012,101
-1-7-13-91-22,111-154,777-287,443-2,012,101

More Examples

Here are some more numbers to try:

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