Q: What are the factor combinations of the number 103,103?

 A:
Positive:   1 x 1031037 x 1472911 x 937313 x 793177 x 133991 x 1133103 x 1001143 x 721
Negative: -1 x -103103-7 x -14729-11 x -9373-13 x -7931-77 x -1339-91 x -1133-103 x -1001-143 x -721


How do I find the factor combinations of the number 103,103?

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 103,103, 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.

1 103,103
-1 -103,103

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 103,103.

Example:
1 x 103,103 = 103,103
and
-1 x -103,103 = 103,103
Notice both answers equal 103,103

With that explanation out of the way, let's continue. Next, we take the number 103,103 and divide it by 2:

103,103 ÷ 2 = 51,551.5

If the quotient is a whole number, then 2 and 51,551.5 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:

1 103,103
-1 -103,103

Now, we try dividing 103,103 by 3:

103,103 ÷ 3 = 34,367.6667

If the quotient is a whole number, then 3 and 34,367.6667 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:

1 103,103
-1 -103,103

Let's try dividing by 4:

103,103 ÷ 4 = 25,775.75

If the quotient is a whole number, then 4 and 25,775.75 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:

1 103,103
-1 103,103
Keep dividing by the next highest number until you cannot divide anymore.

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

17111377911031437211,0011,1331,3397,9319,37314,729103,103
-1-7-11-13-77-91-103-143-721-1,001-1,133-1,339-7,931-9,373-14,729-103,103

More Examples

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