Q: What are the factor combinations of the number 351,835?

 A:
Positive:   1 x 3518355 x 7036711 x 3198555 x 6397
Negative: -1 x -351835-5 x -70367-11 x -31985-55 x -6397


How do I find the factor combinations of the number 351,835?

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 351,835, 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.

1 351,835
-1 -351,835

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 351,835.

Example:
1 x 351,835 = 351,835
and
-1 x -351,835 = 351,835
Notice both answers equal 351,835

With that explanation out of the way, let's continue. Next, we take the number 351,835 and divide it by 2:

351,835 ÷ 2 = 175,917.5

If the quotient is a whole number, then 2 and 175,917.5 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:

1 351,835
-1 -351,835

Now, we try dividing 351,835 by 3:

351,835 ÷ 3 = 117,278.3333

If the quotient is a whole number, then 3 and 117,278.3333 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:

1 351,835
-1 -351,835

Let's try dividing by 4:

351,835 ÷ 4 = 87,958.75

If the quotient is a whole number, then 4 and 87,958.75 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:

1 351,835
-1 351,835
Keep dividing by the next highest number until you cannot divide anymore.

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

1511556,39731,98570,367351,835
-1-5-11-55-6,397-31,985-70,367-351,835

More Examples

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