Q: What are the factor combinations of the number 961,571?

 A:
Positive:   1 x 96157113 x 7396717 x 5656319 x 50609221 x 4351229 x 4199247 x 3893323 x 2977
Negative: -1 x -961571-13 x -73967-17 x -56563-19 x -50609-221 x -4351-229 x -4199-247 x -3893-323 x -2977


How do I find the factor combinations of the number 961,571?

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 961,571, 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.

1 961,571
-1 -961,571

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 961,571.

Example:
1 x 961,571 = 961,571
and
-1 x -961,571 = 961,571
Notice both answers equal 961,571

With that explanation out of the way, let's continue. Next, we take the number 961,571 and divide it by 2:

961,571 ÷ 2 = 480,785.5

If the quotient is a whole number, then 2 and 480,785.5 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:

1 961,571
-1 -961,571

Now, we try dividing 961,571 by 3:

961,571 ÷ 3 = 320,523.6667

If the quotient is a whole number, then 3 and 320,523.6667 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:

1 961,571
-1 -961,571

Let's try dividing by 4:

961,571 ÷ 4 = 240,392.75

If the quotient is a whole number, then 4 and 240,392.75 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:

1 961,571
-1 961,571
Keep dividing by the next highest number until you cannot divide anymore.

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

11317192212292473232,9773,8934,1994,35150,60956,56373,967961,571
-1-13-17-19-221-229-247-323-2,977-3,893-4,199-4,351-50,609-56,563-73,967-961,571

More Examples

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