Q: What are the factor combinations of the number 2,989,535?

 A:
Positive:   1 x 29895355 x 59790717 x 17585585 x 35171
Negative: -1 x -2989535-5 x -597907-17 x -175855-85 x -35171


How do I find the factor combinations of the number 2,989,535?

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 2,989,535, 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 2,989,535
-1 -2,989,535

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 2,989,535.

Example:
1 x 2,989,535 = 2,989,535
and
-1 x -2,989,535 = 2,989,535
Notice both answers equal 2,989,535

With that explanation out of the way, let's continue. Next, we take the number 2,989,535 and divide it by 2:

2,989,535 ÷ 2 = 1,494,767.5

If the quotient is a whole number, then 2 and 1,494,767.5 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 2,989,535
-1 -2,989,535

Now, we try dividing 2,989,535 by 3:

2,989,535 ÷ 3 = 996,511.6667

If the quotient is a whole number, then 3 and 996,511.6667 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 2,989,535
-1 -2,989,535

Let's try dividing by 4:

2,989,535 ÷ 4 = 747,383.75

If the quotient is a whole number, then 4 and 747,383.75 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 2,989,535
-1 2,989,535
Keep dividing by the next highest number until you cannot divide anymore.

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

15178535,171175,855597,9072,989,535
-1-5-17-85-35,171-175,855-597,907-2,989,535

More Examples

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