Q: What are the factor combinations of the number 127,015?

 A:
Positive:   1 x 1270155 x 254037 x 1814519 x 668535 x 362995 x 1337133 x 955191 x 665
Negative: -1 x -127015-5 x -25403-7 x -18145-19 x -6685-35 x -3629-95 x -1337-133 x -955-191 x -665


How do I find the factor combinations of the number 127,015?

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 127,015, 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.

1 127,015
-1 -127,015

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 127,015.

Example:
1 x 127,015 = 127,015
and
-1 x -127,015 = 127,015
Notice both answers equal 127,015

With that explanation out of the way, let's continue. Next, we take the number 127,015 and divide it by 2:

127,015 ÷ 2 = 63,507.5

If the quotient is a whole number, then 2 and 63,507.5 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:

1 127,015
-1 -127,015

Now, we try dividing 127,015 by 3:

127,015 ÷ 3 = 42,338.3333

If the quotient is a whole number, then 3 and 42,338.3333 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:

1 127,015
-1 -127,015

Let's try dividing by 4:

127,015 ÷ 4 = 31,753.75

If the quotient is a whole number, then 4 and 31,753.75 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:

1 127,015
-1 127,015
Keep dividing by the next highest number until you cannot divide anymore.

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

1571935951331916659551,3373,6296,68518,14525,403127,015
-1-5-7-19-35-95-133-191-665-955-1,337-3,629-6,685-18,145-25,403-127,015

More Examples

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