Q: What are the factor combinations of the number 38,713,549?

 A:
Positive:   1 x 387135497 x 5530507337 x 1148772359 x 16411
Negative: -1 x -38713549-7 x -5530507-337 x -114877-2359 x -16411


How do I find the factor combinations of the number 38,713,549?

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 38,713,549, 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 38,713,549
-1 -38,713,549

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 38,713,549.

Example:
1 x 38,713,549 = 38,713,549
and
-1 x -38,713,549 = 38,713,549
Notice both answers equal 38,713,549

With that explanation out of the way, let's continue. Next, we take the number 38,713,549 and divide it by 2:

38,713,549 ÷ 2 = 19,356,774.5

If the quotient is a whole number, then 2 and 19,356,774.5 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 38,713,549
-1 -38,713,549

Now, we try dividing 38,713,549 by 3:

38,713,549 ÷ 3 = 12,904,516.3333

If the quotient is a whole number, then 3 and 12,904,516.3333 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 38,713,549
-1 -38,713,549

Let's try dividing by 4:

38,713,549 ÷ 4 = 9,678,387.25

If the quotient is a whole number, then 4 and 9,678,387.25 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 38,713,549
-1 38,713,549
Keep dividing by the next highest number until you cannot divide anymore.

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

173372,35916,411114,8775,530,50738,713,549
-1-7-337-2,359-16,411-114,877-5,530,507-38,713,549

More Examples

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