Q: What are the factor combinations of the number 784,818,079?

 A:
Positive:   1 x 78481807947 x 16698257103 x 76195934841 x 162119
Negative: -1 x -784818079-47 x -16698257-103 x -7619593-4841 x -162119


How do I find the factor combinations of the number 784,818,079?

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 784,818,079, 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.

1 784,818,079
-1 -784,818,079

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 784,818,079.

Example:
1 x 784,818,079 = 784,818,079
and
-1 x -784,818,079 = 784,818,079
Notice both answers equal 784,818,079

With that explanation out of the way, let's continue. Next, we take the number 784,818,079 and divide it by 2:

784,818,079 ÷ 2 = 392,409,039.5

If the quotient is a whole number, then 2 and 392,409,039.5 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:

1 784,818,079
-1 -784,818,079

Now, we try dividing 784,818,079 by 3:

784,818,079 ÷ 3 = 261,606,026.3333

If the quotient is a whole number, then 3 and 261,606,026.3333 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:

1 784,818,079
-1 -784,818,079

Let's try dividing by 4:

784,818,079 ÷ 4 = 196,204,519.75

If the quotient is a whole number, then 4 and 196,204,519.75 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:

1 784,818,079
-1 784,818,079
Keep dividing by the next highest number until you cannot divide anymore.

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

1471034,841162,1197,619,59316,698,257784,818,079
-1-47-103-4,841-162,119-7,619,593-16,698,257-784,818,079

More Examples

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