Q: What are the factor combinations of the number 310,843,548?

 A:
Positive:   1 x 3108435482 x 1554217743 x 1036145164 x 777108876 x 518072589 x 3453817212 x 2590362918 x 1726908627 x 1151272436 x 863454354 x 5756362108 x 2878181
Negative: -1 x -310843548-2 x -155421774-3 x -103614516-4 x -77710887-6 x -51807258-9 x -34538172-12 x -25903629-18 x -17269086-27 x -11512724-36 x -8634543-54 x -5756362-108 x -2878181


How do I find the factor combinations of the number 310,843,548?

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 310,843,548, 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.

1 310,843,548
-1 -310,843,548

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 310,843,548.

Example:
1 x 310,843,548 = 310,843,548
and
-1 x -310,843,548 = 310,843,548
Notice both answers equal 310,843,548

With that explanation out of the way, let's continue. Next, we take the number 310,843,548 and divide it by 2:

310,843,548 ÷ 2 = 155,421,774

If the quotient is a whole number, then 2 and 155,421,774 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 2 155,421,774 310,843,548
-1 -2 -155,421,774 -310,843,548

Now, we try dividing 310,843,548 by 3:

310,843,548 ÷ 3 = 103,614,516

If the quotient is a whole number, then 3 and 103,614,516 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 3 103,614,516 155,421,774 310,843,548
-1 -2 -3 -103,614,516 -155,421,774 -310,843,548

Let's try dividing by 4:

310,843,548 ÷ 4 = 77,710,887

If the quotient is a whole number, then 4 and 77,710,887 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 77,710,887 103,614,516 155,421,774 310,843,548
-1 -2 -3 -4 -77,710,887 -103,614,516 -155,421,774 310,843,548
Keep dividing by the next highest number until you cannot divide anymore.

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

12346912182736541082,878,1815,756,3628,634,54311,512,72417,269,08625,903,62934,538,17251,807,25877,710,887103,614,516155,421,774310,843,548
-1-2-3-4-6-9-12-18-27-36-54-108-2,878,181-5,756,362-8,634,543-11,512,724-17,269,086-25,903,629-34,538,172-51,807,258-77,710,887-103,614,516-155,421,774-310,843,548

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