Q: What are the factor combinations of the number 321,003,348?

 A:
Positive:   1 x 3210033482 x 1605016743 x 1070011164 x 802508376 x 5350055812 x 267502791399 x 2294522798 x 1147264197 x 764845596 x 573638394 x 3824216788 x 19121
Negative: -1 x -321003348-2 x -160501674-3 x -107001116-4 x -80250837-6 x -53500558-12 x -26750279-1399 x -229452-2798 x -114726-4197 x -76484-5596 x -57363-8394 x -38242-16788 x -19121


How do I find the factor combinations of the number 321,003,348?

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 321,003,348, 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.

1 321,003,348
-1 -321,003,348

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 321,003,348.

Example:
1 x 321,003,348 = 321,003,348
and
-1 x -321,003,348 = 321,003,348
Notice both answers equal 321,003,348

With that explanation out of the way, let's continue. Next, we take the number 321,003,348 and divide it by 2:

321,003,348 ÷ 2 = 160,501,674

If the quotient is a whole number, then 2 and 160,501,674 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 2 160,501,674 321,003,348
-1 -2 -160,501,674 -321,003,348

Now, we try dividing 321,003,348 by 3:

321,003,348 ÷ 3 = 107,001,116

If the quotient is a whole number, then 3 and 107,001,116 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 3 107,001,116 160,501,674 321,003,348
-1 -2 -3 -107,001,116 -160,501,674 -321,003,348

Let's try dividing by 4:

321,003,348 ÷ 4 = 80,250,837

If the quotient is a whole number, then 4 and 80,250,837 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 80,250,837 107,001,116 160,501,674 321,003,348
-1 -2 -3 -4 -80,250,837 -107,001,116 -160,501,674 321,003,348
Keep dividing by the next highest number until you cannot divide anymore.

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

12346121,3992,7984,1975,5968,39416,78819,12138,24257,36376,484114,726229,45226,750,27953,500,55880,250,837107,001,116160,501,674321,003,348
-1-2-3-4-6-12-1,399-2,798-4,197-5,596-8,394-16,788-19,121-38,242-57,363-76,484-114,726-229,452-26,750,279-53,500,558-80,250,837-107,001,116-160,501,674-321,003,348

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