Q: What are the factor combinations of the number 37,387,291?

 A:
Positive:   1 x 37387291263 x 142157
Negative: -1 x -37387291-263 x -142157


How do I find the factor combinations of the number 37,387,291?

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 37,387,291, 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 37,387,291
-1 -37,387,291

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 37,387,291.

Example:
1 x 37,387,291 = 37,387,291
and
-1 x -37,387,291 = 37,387,291
Notice both answers equal 37,387,291

With that explanation out of the way, let's continue. Next, we take the number 37,387,291 and divide it by 2:

37,387,291 ÷ 2 = 18,693,645.5

If the quotient is a whole number, then 2 and 18,693,645.5 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 37,387,291
-1 -37,387,291

Now, we try dividing 37,387,291 by 3:

37,387,291 ÷ 3 = 12,462,430.3333

If the quotient is a whole number, then 3 and 12,462,430.3333 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 37,387,291
-1 -37,387,291

Let's try dividing by 4:

37,387,291 ÷ 4 = 9,346,822.75

If the quotient is a whole number, then 4 and 9,346,822.75 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 37,387,291
-1 37,387,291
Keep dividing by the next highest number until you cannot divide anymore.

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

1263142,15737,387,291
-1-263-142,157-37,387,291

More Examples

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