Q: What are the factor combinations of the number 1,521,288?

 A:
Positive:   1 x 15212882 x 7606443 x 5070964 x 3803226 x 2535488 x 1901619 x 16903212 x 12677418 x 8451624 x 6338727 x 5634436 x 4225854 x 2817272 x 21129108 x 14086216 x 7043
Negative: -1 x -1521288-2 x -760644-3 x -507096-4 x -380322-6 x -253548-8 x -190161-9 x -169032-12 x -126774-18 x -84516-24 x -63387-27 x -56344-36 x -42258-54 x -28172-72 x -21129-108 x -14086-216 x -7043


How do I find the factor combinations of the number 1,521,288?

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 1,521,288, 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 1,521,288
-1 -1,521,288

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 1,521,288.

Example:
1 x 1,521,288 = 1,521,288
and
-1 x -1,521,288 = 1,521,288
Notice both answers equal 1,521,288

With that explanation out of the way, let's continue. Next, we take the number 1,521,288 and divide it by 2:

1,521,288 ÷ 2 = 760,644

If the quotient is a whole number, then 2 and 760,644 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 2 760,644 1,521,288
-1 -2 -760,644 -1,521,288

Now, we try dividing 1,521,288 by 3:

1,521,288 ÷ 3 = 507,096

If the quotient is a whole number, then 3 and 507,096 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 3 507,096 760,644 1,521,288
-1 -2 -3 -507,096 -760,644 -1,521,288

Let's try dividing by 4:

1,521,288 ÷ 4 = 380,322

If the quotient is a whole number, then 4 and 380,322 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 4 380,322 507,096 760,644 1,521,288
-1 -2 -3 -4 -380,322 -507,096 -760,644 1,521,288
Keep dividing by the next highest number until you cannot divide anymore.

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

1234689121824273654721082167,04314,08621,12928,17242,25856,34463,38784,516126,774169,032190,161253,548380,322507,096760,6441,521,288
-1-2-3-4-6-8-9-12-18-24-27-36-54-72-108-216-7,043-14,086-21,129-28,172-42,258-56,344-63,387-84,516-126,774-169,032-190,161-253,548-380,322-507,096-760,644-1,521,288

More Examples

Here are some more numbers to try:

1,521,2861,521,2871,521,2891,521,290
Try the factor calculator

Explore more about the number 1,521,288:


Ask a Question