Q: What are the factor combinations of the number 152,148?

 A:
Positive:   1 x 1521482 x 760743 x 507164 x 380376 x 2535812 x 1267931 x 490862 x 245493 x 1636124 x 1227186 x 818372 x 409
Negative: -1 x -152148-2 x -76074-3 x -50716-4 x -38037-6 x -25358-12 x -12679-31 x -4908-62 x -2454-93 x -1636-124 x -1227-186 x -818-372 x -409


How do I find the factor combinations of the number 152,148?

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 152,148, 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.

1 152,148
-1 -152,148

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 152,148.

Example:
1 x 152,148 = 152,148
and
-1 x -152,148 = 152,148
Notice both answers equal 152,148

With that explanation out of the way, let's continue. Next, we take the number 152,148 and divide it by 2:

152,148 ÷ 2 = 76,074

If the quotient is a whole number, then 2 and 76,074 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 76,074 152,148
-1 -2 -76,074 -152,148

Now, we try dividing 152,148 by 3:

152,148 ÷ 3 = 50,716

If the quotient is a whole number, then 3 and 50,716 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 50,716 76,074 152,148
-1 -2 -3 -50,716 -76,074 -152,148

Let's try dividing by 4:

152,148 ÷ 4 = 38,037

If the quotient is a whole number, then 4 and 38,037 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 3 4 38,037 50,716 76,074 152,148
-1 -2 -3 -4 -38,037 -50,716 -76,074 152,148
Keep dividing by the next highest number until you cannot divide anymore.

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

12346123162931241863724098181,2271,6362,4544,90812,67925,35838,03750,71676,074152,148
-1-2-3-4-6-12-31-62-93-124-186-372-409-818-1,227-1,636-2,454-4,908-12,679-25,358-38,037-50,716-76,074-152,148

More Examples

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