Q: What are the factor combinations of the number 70,499?

 A:
Positive:   1 x 7049911 x 640913 x 542317 x 414729 x 2431143 x 493187 x 377221 x 319
Negative: -1 x -70499-11 x -6409-13 x -5423-17 x -4147-29 x -2431-143 x -493-187 x -377-221 x -319


How do I find the factor combinations of the number 70,499?

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 70,499, 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 70,499
-1 -70,499

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 70,499.

Example:
1 x 70,499 = 70,499
and
-1 x -70,499 = 70,499
Notice both answers equal 70,499

With that explanation out of the way, let's continue. Next, we take the number 70,499 and divide it by 2:

70,499 ÷ 2 = 35,249.5

If the quotient is a whole number, then 2 and 35,249.5 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 70,499
-1 -70,499

Now, we try dividing 70,499 by 3:

70,499 ÷ 3 = 23,499.6667

If the quotient is a whole number, then 3 and 23,499.6667 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 70,499
-1 -70,499

Let's try dividing by 4:

70,499 ÷ 4 = 17,624.75

If the quotient is a whole number, then 4 and 17,624.75 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 70,499
-1 70,499
Keep dividing by the next highest number until you cannot divide anymore.

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

1111317291431872213193774932,4314,1475,4236,40970,499
-1-11-13-17-29-143-187-221-319-377-493-2,431-4,147-5,423-6,409-70,499

More Examples

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