Q: What are the factor combinations of the number 28,888,433?

 A:
Positive:   1 x 288884337 x 4126919193 x 1496811351 x 21383
Negative: -1 x -28888433-7 x -4126919-193 x -149681-1351 x -21383


How do I find the factor combinations of the number 28,888,433?

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 28,888,433, 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 28,888,433
-1 -28,888,433

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 28,888,433.

Example:
1 x 28,888,433 = 28,888,433
and
-1 x -28,888,433 = 28,888,433
Notice both answers equal 28,888,433

With that explanation out of the way, let's continue. Next, we take the number 28,888,433 and divide it by 2:

28,888,433 ÷ 2 = 14,444,216.5

If the quotient is a whole number, then 2 and 14,444,216.5 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 28,888,433
-1 -28,888,433

Now, we try dividing 28,888,433 by 3:

28,888,433 ÷ 3 = 9,629,477.6667

If the quotient is a whole number, then 3 and 9,629,477.6667 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 28,888,433
-1 -28,888,433

Let's try dividing by 4:

28,888,433 ÷ 4 = 7,222,108.25

If the quotient is a whole number, then 4 and 7,222,108.25 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 28,888,433
-1 28,888,433
Keep dividing by the next highest number until you cannot divide anymore.

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

171931,35121,383149,6814,126,91928,888,433
-1-7-193-1,351-21,383-149,681-4,126,919-28,888,433

More Examples

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