Q: What are the factor combinations of the number 719,875?

 A:
Positive:   1 x 7198755 x 14397513 x 5537525 x 2879565 x 11075125 x 5759325 x 2215443 x 1625
Negative: -1 x -719875-5 x -143975-13 x -55375-25 x -28795-65 x -11075-125 x -5759-325 x -2215-443 x -1625


How do I find the factor combinations of the number 719,875?

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 719,875, 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.

1 719,875
-1 -719,875

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 719,875.

Example:
1 x 719,875 = 719,875
and
-1 x -719,875 = 719,875
Notice both answers equal 719,875

With that explanation out of the way, let's continue. Next, we take the number 719,875 and divide it by 2:

719,875 ÷ 2 = 359,937.5

If the quotient is a whole number, then 2 and 359,937.5 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:

1 719,875
-1 -719,875

Now, we try dividing 719,875 by 3:

719,875 ÷ 3 = 239,958.3333

If the quotient is a whole number, then 3 and 239,958.3333 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:

1 719,875
-1 -719,875

Let's try dividing by 4:

719,875 ÷ 4 = 179,968.75

If the quotient is a whole number, then 4 and 179,968.75 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:

1 719,875
-1 719,875
Keep dividing by the next highest number until you cannot divide anymore.

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

151325651253254431,6252,2155,75911,07528,79555,375143,975719,875
-1-5-13-25-65-125-325-443-1,625-2,215-5,759-11,075-28,795-55,375-143,975-719,875

More Examples

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