Q: What are the factor combinations of the number 7,701,701?

 A:
Positive:   1 x 77017017 x 1100243
Negative: -1 x -7701701-7 x -1100243


How do I find the factor combinations of the number 7,701,701?

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 7,701,701, 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 7,701,701
-1 -7,701,701

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 7,701,701.

Example:
1 x 7,701,701 = 7,701,701
and
-1 x -7,701,701 = 7,701,701
Notice both answers equal 7,701,701

With that explanation out of the way, let's continue. Next, we take the number 7,701,701 and divide it by 2:

7,701,701 ÷ 2 = 3,850,850.5

If the quotient is a whole number, then 2 and 3,850,850.5 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 7,701,701
-1 -7,701,701

Now, we try dividing 7,701,701 by 3:

7,701,701 ÷ 3 = 2,567,233.6667

If the quotient is a whole number, then 3 and 2,567,233.6667 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 7,701,701
-1 -7,701,701

Let's try dividing by 4:

7,701,701 ÷ 4 = 1,925,425.25

If the quotient is a whole number, then 4 and 1,925,425.25 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 7,701,701
-1 7,701,701
Keep dividing by the next highest number until you cannot divide anymore.

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

171,100,2437,701,701
-1-7-1,100,243-7,701,701

More Examples

Here are some more numbers to try:

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