Q: What are the factor combinations of the number 37,929,143?

 A:
Positive:   1 x 379291437 x 5418449293 x 1294512051 x 18493
Negative: -1 x -37929143-7 x -5418449-293 x -129451-2051 x -18493


How do I find the factor combinations of the number 37,929,143?

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 37,929,143, 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 37,929,143
-1 -37,929,143

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 37,929,143.

Example:
1 x 37,929,143 = 37,929,143
and
-1 x -37,929,143 = 37,929,143
Notice both answers equal 37,929,143

With that explanation out of the way, let's continue. Next, we take the number 37,929,143 and divide it by 2:

37,929,143 ÷ 2 = 18,964,571.5

If the quotient is a whole number, then 2 and 18,964,571.5 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 37,929,143
-1 -37,929,143

Now, we try dividing 37,929,143 by 3:

37,929,143 ÷ 3 = 12,643,047.6667

If the quotient is a whole number, then 3 and 12,643,047.6667 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 37,929,143
-1 -37,929,143

Let's try dividing by 4:

37,929,143 ÷ 4 = 9,482,285.75

If the quotient is a whole number, then 4 and 9,482,285.75 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 37,929,143
-1 37,929,143
Keep dividing by the next highest number until you cannot divide anymore.

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

172932,05118,493129,4515,418,44937,929,143
-1-7-293-2,051-18,493-129,451-5,418,449-37,929,143

More Examples

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