Q: What are the factor combinations of the number 348,130,487?

 A:
Positive:   1 x 348130487563 x 618349
Negative: -1 x -348130487-563 x -618349


How do I find the factor combinations of the number 348,130,487?

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 348,130,487, 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.

1 348,130,487
-1 -348,130,487

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 348,130,487.

Example:
1 x 348,130,487 = 348,130,487
and
-1 x -348,130,487 = 348,130,487
Notice both answers equal 348,130,487

With that explanation out of the way, let's continue. Next, we take the number 348,130,487 and divide it by 2:

348,130,487 ÷ 2 = 174,065,243.5

If the quotient is a whole number, then 2 and 174,065,243.5 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:

1 348,130,487
-1 -348,130,487

Now, we try dividing 348,130,487 by 3:

348,130,487 ÷ 3 = 116,043,495.6667

If the quotient is a whole number, then 3 and 116,043,495.6667 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:

1 348,130,487
-1 -348,130,487

Let's try dividing by 4:

348,130,487 ÷ 4 = 87,032,621.75

If the quotient is a whole number, then 4 and 87,032,621.75 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:

1 348,130,487
-1 348,130,487
Keep dividing by the next highest number until you cannot divide anymore.

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

1563618,349348,130,487
-1-563-618,349-348,130,487

More Examples

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