Q: What are the factor combinations of the number 402,925?

 A:
Positive:   1 x 4029255 x 8058525 x 1611771 x 5675227 x 1775355 x 1135
Negative: -1 x -402925-5 x -80585-25 x -16117-71 x -5675-227 x -1775-355 x -1135


How do I find the factor combinations of the number 402,925?

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 402,925, 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.

1 402,925
-1 -402,925

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 402,925.

Example:
1 x 402,925 = 402,925
and
-1 x -402,925 = 402,925
Notice both answers equal 402,925

With that explanation out of the way, let's continue. Next, we take the number 402,925 and divide it by 2:

402,925 ÷ 2 = 201,462.5

If the quotient is a whole number, then 2 and 201,462.5 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:

1 402,925
-1 -402,925

Now, we try dividing 402,925 by 3:

402,925 ÷ 3 = 134,308.3333

If the quotient is a whole number, then 3 and 134,308.3333 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:

1 402,925
-1 -402,925

Let's try dividing by 4:

402,925 ÷ 4 = 100,731.25

If the quotient is a whole number, then 4 and 100,731.25 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:

1 402,925
-1 402,925
Keep dividing by the next highest number until you cannot divide anymore.

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

1525712273551,1351,7755,67516,11780,585402,925
-1-5-25-71-227-355-1,135-1,775-5,675-16,117-80,585-402,925

More Examples

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