Q: What are the factor combinations of the number 7,347,217?

 A:
Positive:   1 x 734721731 x 23700789 x 825532663 x 2759
Negative: -1 x -7347217-31 x -237007-89 x -82553-2663 x -2759


How do I find the factor combinations of the number 7,347,217?

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 7,347,217, 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 7,347,217
-1 -7,347,217

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 7,347,217.

Example:
1 x 7,347,217 = 7,347,217
and
-1 x -7,347,217 = 7,347,217
Notice both answers equal 7,347,217

With that explanation out of the way, let's continue. Next, we take the number 7,347,217 and divide it by 2:

7,347,217 ÷ 2 = 3,673,608.5

If the quotient is a whole number, then 2 and 3,673,608.5 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 7,347,217
-1 -7,347,217

Now, we try dividing 7,347,217 by 3:

7,347,217 ÷ 3 = 2,449,072.3333

If the quotient is a whole number, then 3 and 2,449,072.3333 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 7,347,217
-1 -7,347,217

Let's try dividing by 4:

7,347,217 ÷ 4 = 1,836,804.25

If the quotient is a whole number, then 4 and 1,836,804.25 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 7,347,217
-1 7,347,217
Keep dividing by the next highest number until you cannot divide anymore.

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

131892,6632,75982,553237,0077,347,217
-1-31-89-2,663-2,759-82,553-237,007-7,347,217

More Examples

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