Q: What are the factor combinations of the number 705,071,125?

 A:
Positive:   1 x 7050711255 x 14101422511 x 6409737525 x 2820284555 x 12819475125 x 5640569275 x 25638951375 x 512779
Negative: -1 x -705071125-5 x -141014225-11 x -64097375-25 x -28202845-55 x -12819475-125 x -5640569-275 x -2563895-1375 x -512779


How do I find the factor combinations of the number 705,071,125?

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 705,071,125, 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.

1 705,071,125
-1 -705,071,125

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 705,071,125.

Example:
1 x 705,071,125 = 705,071,125
and
-1 x -705,071,125 = 705,071,125
Notice both answers equal 705,071,125

With that explanation out of the way, let's continue. Next, we take the number 705,071,125 and divide it by 2:

705,071,125 ÷ 2 = 352,535,562.5

If the quotient is a whole number, then 2 and 352,535,562.5 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:

1 705,071,125
-1 -705,071,125

Now, we try dividing 705,071,125 by 3:

705,071,125 ÷ 3 = 235,023,708.3333

If the quotient is a whole number, then 3 and 235,023,708.3333 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:

1 705,071,125
-1 -705,071,125

Let's try dividing by 4:

705,071,125 ÷ 4 = 176,267,781.25

If the quotient is a whole number, then 4 and 176,267,781.25 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:

1 705,071,125
-1 705,071,125
Keep dividing by the next highest number until you cannot divide anymore.

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

151125551252751,375512,7792,563,8955,640,56912,819,47528,202,84564,097,375141,014,225705,071,125
-1-5-11-25-55-125-275-1,375-512,779-2,563,895-5,640,569-12,819,475-28,202,845-64,097,375-141,014,225-705,071,125

More Examples

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