Q: What are the factor combinations of the number 361,954?

 A:
Positive:   1 x 3619542 x 180977137 x 2642274 x 1321
Negative: -1 x -361954-2 x -180977-137 x -2642-274 x -1321


How do I find the factor combinations of the number 361,954?

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 361,954, 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.

1 361,954
-1 -361,954

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 361,954.

Example:
1 x 361,954 = 361,954
and
-1 x -361,954 = 361,954
Notice both answers equal 361,954

With that explanation out of the way, let's continue. Next, we take the number 361,954 and divide it by 2:

361,954 ÷ 2 = 180,977

If the quotient is a whole number, then 2 and 180,977 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 2 180,977 361,954
-1 -2 -180,977 -361,954

Now, we try dividing 361,954 by 3:

361,954 ÷ 3 = 120,651.3333

If the quotient is a whole number, then 3 and 120,651.3333 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 2 180,977 361,954
-1 -2 -180,977 -361,954

Let's try dividing by 4:

361,954 ÷ 4 = 90,488.5

If the quotient is a whole number, then 4 and 90,488.5 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 2 180,977 361,954
-1 -2 -180,977 361,954
Keep dividing by the next highest number until you cannot divide anymore.

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

121372741,3212,642180,977361,954
-1-2-137-274-1,321-2,642-180,977-361,954

More Examples

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