Q: What are the factor combinations of the number 53,845?

 A:
Positive:   1 x 538455 x 1076911 x 489555 x 97989 x 605121 x 445
Negative: -1 x -53845-5 x -10769-11 x -4895-55 x -979-89 x -605-121 x -445


How do I find the factor combinations of the number 53,845?

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 53,845, 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 53,845
-1 -53,845

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 53,845.

Example:
1 x 53,845 = 53,845
and
-1 x -53,845 = 53,845
Notice both answers equal 53,845

With that explanation out of the way, let's continue. Next, we take the number 53,845 and divide it by 2:

53,845 ÷ 2 = 26,922.5

If the quotient is a whole number, then 2 and 26,922.5 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 53,845
-1 -53,845

Now, we try dividing 53,845 by 3:

53,845 ÷ 3 = 17,948.3333

If the quotient is a whole number, then 3 and 17,948.3333 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 53,845
-1 -53,845

Let's try dividing by 4:

53,845 ÷ 4 = 13,461.25

If the quotient is a whole number, then 4 and 13,461.25 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 53,845
-1 53,845
Keep dividing by the next highest number until you cannot divide anymore.

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

151155891214456059794,89510,76953,845
-1-5-11-55-89-121-445-605-979-4,895-10,769-53,845

More Examples

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