Q: What are the factor combinations of the number 100,074?

 A:
Positive:   1 x 1000742 x 500373 x 333586 x 1667913 x 769826 x 384939 x 256678 x 1283
Negative: -1 x -100074-2 x -50037-3 x -33358-6 x -16679-13 x -7698-26 x -3849-39 x -2566-78 x -1283


How do I find the factor combinations of the number 100,074?

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 100,074, 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.

1 100,074
-1 -100,074

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 100,074.

Example:
1 x 100,074 = 100,074
and
-1 x -100,074 = 100,074
Notice both answers equal 100,074

With that explanation out of the way, let's continue. Next, we take the number 100,074 and divide it by 2:

100,074 ÷ 2 = 50,037

If the quotient is a whole number, then 2 and 50,037 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 50,037 100,074
-1 -2 -50,037 -100,074

Now, we try dividing 100,074 by 3:

100,074 ÷ 3 = 33,358

If the quotient is a whole number, then 3 and 33,358 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 3 33,358 50,037 100,074
-1 -2 -3 -33,358 -50,037 -100,074

Let's try dividing by 4:

100,074 ÷ 4 = 25,018.5

If the quotient is a whole number, then 4 and 25,018.5 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 3 33,358 50,037 100,074
-1 -2 -3 -33,358 -50,037 100,074
Keep dividing by the next highest number until you cannot divide anymore.

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

1236132639781,2832,5663,8497,69816,67933,35850,037100,074
-1-2-3-6-13-26-39-78-1,283-2,566-3,849-7,698-16,679-33,358-50,037-100,074

More Examples

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