Q: What are the factor combinations of the number 29,321,297?

 A:
Positive:   1 x 2932129723 x 127483961 x 4806771403 x 20899
Negative: -1 x -29321297-23 x -1274839-61 x -480677-1403 x -20899


How do I find the factor combinations of the number 29,321,297?

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 29,321,297, 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 29,321,297
-1 -29,321,297

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 29,321,297.

Example:
1 x 29,321,297 = 29,321,297
and
-1 x -29,321,297 = 29,321,297
Notice both answers equal 29,321,297

With that explanation out of the way, let's continue. Next, we take the number 29,321,297 and divide it by 2:

29,321,297 ÷ 2 = 14,660,648.5

If the quotient is a whole number, then 2 and 14,660,648.5 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 29,321,297
-1 -29,321,297

Now, we try dividing 29,321,297 by 3:

29,321,297 ÷ 3 = 9,773,765.6667

If the quotient is a whole number, then 3 and 9,773,765.6667 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 29,321,297
-1 -29,321,297

Let's try dividing by 4:

29,321,297 ÷ 4 = 7,330,324.25

If the quotient is a whole number, then 4 and 7,330,324.25 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 29,321,297
-1 29,321,297
Keep dividing by the next highest number until you cannot divide anymore.

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

123611,40320,899480,6771,274,83929,321,297
-1-23-61-1,403-20,899-480,677-1,274,839-29,321,297

More Examples

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