Q: What are the factor combinations of the number 27,400,859?

 A:
Positive:   1 x 2740085947 x 582997167 x 1640773491 x 7849
Negative: -1 x -27400859-47 x -582997-167 x -164077-3491 x -7849


How do I find the factor combinations of the number 27,400,859?

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 27,400,859, 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 27,400,859
-1 -27,400,859

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 27,400,859.

Example:
1 x 27,400,859 = 27,400,859
and
-1 x -27,400,859 = 27,400,859
Notice both answers equal 27,400,859

With that explanation out of the way, let's continue. Next, we take the number 27,400,859 and divide it by 2:

27,400,859 ÷ 2 = 13,700,429.5

If the quotient is a whole number, then 2 and 13,700,429.5 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 27,400,859
-1 -27,400,859

Now, we try dividing 27,400,859 by 3:

27,400,859 ÷ 3 = 9,133,619.6667

If the quotient is a whole number, then 3 and 9,133,619.6667 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 27,400,859
-1 -27,400,859

Let's try dividing by 4:

27,400,859 ÷ 4 = 6,850,214.75

If the quotient is a whole number, then 4 and 6,850,214.75 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 27,400,859
-1 27,400,859
Keep dividing by the next highest number until you cannot divide anymore.

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

1471673,4917,849164,077582,99727,400,859
-1-47-167-3,491-7,849-164,077-582,997-27,400,859

More Examples

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