Q: What are the factor combinations of the number 17,037,865?

 A:
Positive:   1 x 170378655 x 340757313 x 131060565 x 262121
Negative: -1 x -17037865-5 x -3407573-13 x -1310605-65 x -262121


How do I find the factor combinations of the number 17,037,865?

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 17,037,865, 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 17,037,865
-1 -17,037,865

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 17,037,865.

Example:
1 x 17,037,865 = 17,037,865
and
-1 x -17,037,865 = 17,037,865
Notice both answers equal 17,037,865

With that explanation out of the way, let's continue. Next, we take the number 17,037,865 and divide it by 2:

17,037,865 ÷ 2 = 8,518,932.5

If the quotient is a whole number, then 2 and 8,518,932.5 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 17,037,865
-1 -17,037,865

Now, we try dividing 17,037,865 by 3:

17,037,865 ÷ 3 = 5,679,288.3333

If the quotient is a whole number, then 3 and 5,679,288.3333 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 17,037,865
-1 -17,037,865

Let's try dividing by 4:

17,037,865 ÷ 4 = 4,259,466.25

If the quotient is a whole number, then 4 and 4,259,466.25 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 17,037,865
-1 17,037,865
Keep dividing by the next highest number until you cannot divide anymore.

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

151365262,1211,310,6053,407,57317,037,865
-1-5-13-65-262,121-1,310,605-3,407,573-17,037,865

More Examples

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