Q: What are the factor combinations of the number 361,157?

 A:
Positive:   1 x 36115737 x 976143 x 8399227 x 1591
Negative: -1 x -361157-37 x -9761-43 x -8399-227 x -1591


How do I find the factor combinations of the number 361,157?

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 361,157, 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.

1 361,157
-1 -361,157

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 361,157.

Example:
1 x 361,157 = 361,157
and
-1 x -361,157 = 361,157
Notice both answers equal 361,157

With that explanation out of the way, let's continue. Next, we take the number 361,157 and divide it by 2:

361,157 ÷ 2 = 180,578.5

If the quotient is a whole number, then 2 and 180,578.5 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:

1 361,157
-1 -361,157

Now, we try dividing 361,157 by 3:

361,157 ÷ 3 = 120,385.6667

If the quotient is a whole number, then 3 and 120,385.6667 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:

1 361,157
-1 -361,157

Let's try dividing by 4:

361,157 ÷ 4 = 90,289.25

If the quotient is a whole number, then 4 and 90,289.25 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:

1 361,157
-1 361,157
Keep dividing by the next highest number until you cannot divide anymore.

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

137432271,5918,3999,761361,157
-1-37-43-227-1,591-8,399-9,761-361,157

More Examples

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