Q: What are the factor combinations of the number 69,125?

 A:
Positive:   1 x 691255 x 138257 x 987525 x 276535 x 197579 x 875125 x 553175 x 395
Negative: -1 x -69125-5 x -13825-7 x -9875-25 x -2765-35 x -1975-79 x -875-125 x -553-175 x -395


How do I find the factor combinations of the number 69,125?

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 69,125, 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 69,125
-1 -69,125

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 69,125.

Example:
1 x 69,125 = 69,125
and
-1 x -69,125 = 69,125
Notice both answers equal 69,125

With that explanation out of the way, let's continue. Next, we take the number 69,125 and divide it by 2:

69,125 ÷ 2 = 34,562.5

If the quotient is a whole number, then 2 and 34,562.5 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 69,125
-1 -69,125

Now, we try dividing 69,125 by 3:

69,125 ÷ 3 = 23,041.6667

If the quotient is a whole number, then 3 and 23,041.6667 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 69,125
-1 -69,125

Let's try dividing by 4:

69,125 ÷ 4 = 17,281.25

If the quotient is a whole number, then 4 and 17,281.25 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 69,125
-1 69,125
Keep dividing by the next highest number until you cannot divide anymore.

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

1572535791251753955538751,9752,7659,87513,82569,125
-1-5-7-25-35-79-125-175-395-553-875-1,975-2,765-9,875-13,825-69,125

More Examples

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