Q: What are the factor combinations of the number 71,470,357?

 A:
Positive:   1 x 714703577 x 10210051571 x 1251673997 x 17881
Negative: -1 x -71470357-7 x -10210051-571 x -125167-3997 x -17881


How do I find the factor combinations of the number 71,470,357?

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 71,470,357, 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 71,470,357
-1 -71,470,357

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 71,470,357.

Example:
1 x 71,470,357 = 71,470,357
and
-1 x -71,470,357 = 71,470,357
Notice both answers equal 71,470,357

With that explanation out of the way, let's continue. Next, we take the number 71,470,357 and divide it by 2:

71,470,357 ÷ 2 = 35,735,178.5

If the quotient is a whole number, then 2 and 35,735,178.5 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 71,470,357
-1 -71,470,357

Now, we try dividing 71,470,357 by 3:

71,470,357 ÷ 3 = 23,823,452.3333

If the quotient is a whole number, then 3 and 23,823,452.3333 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 71,470,357
-1 -71,470,357

Let's try dividing by 4:

71,470,357 ÷ 4 = 17,867,589.25

If the quotient is a whole number, then 4 and 17,867,589.25 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 71,470,357
-1 71,470,357
Keep dividing by the next highest number until you cannot divide anymore.

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

175713,99717,881125,16710,210,05171,470,357
-1-7-571-3,997-17,881-125,167-10,210,051-71,470,357

More Examples

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