Q: What are the factor combinations of the number 1,497,617?

 A:
Positive:   1 x 149761711 x 136147121 x 12377
Negative: -1 x -1497617-11 x -136147-121 x -12377


How do I find the factor combinations of the number 1,497,617?

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 1,497,617, 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 1,497,617
-1 -1,497,617

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 1,497,617.

Example:
1 x 1,497,617 = 1,497,617
and
-1 x -1,497,617 = 1,497,617
Notice both answers equal 1,497,617

With that explanation out of the way, let's continue. Next, we take the number 1,497,617 and divide it by 2:

1,497,617 ÷ 2 = 748,808.5

If the quotient is a whole number, then 2 and 748,808.5 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 1,497,617
-1 -1,497,617

Now, we try dividing 1,497,617 by 3:

1,497,617 ÷ 3 = 499,205.6667

If the quotient is a whole number, then 3 and 499,205.6667 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 1,497,617
-1 -1,497,617

Let's try dividing by 4:

1,497,617 ÷ 4 = 374,404.25

If the quotient is a whole number, then 4 and 374,404.25 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 1,497,617
-1 1,497,617
Keep dividing by the next highest number until you cannot divide anymore.

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

11112112,377136,1471,497,617
-1-11-121-12,377-136,147-1,497,617

More Examples

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