Q: What are the factor combinations of the number 10,972,745?

 A:
Positive:   1 x 109727455 x 21945497 x 156753535 x 313507
Negative: -1 x -10972745-5 x -2194549-7 x -1567535-35 x -313507


How do I find the factor combinations of the number 10,972,745?

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 10,972,745, 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 10,972,745
-1 -10,972,745

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 10,972,745.

Example:
1 x 10,972,745 = 10,972,745
and
-1 x -10,972,745 = 10,972,745
Notice both answers equal 10,972,745

With that explanation out of the way, let's continue. Next, we take the number 10,972,745 and divide it by 2:

10,972,745 ÷ 2 = 5,486,372.5

If the quotient is a whole number, then 2 and 5,486,372.5 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 10,972,745
-1 -10,972,745

Now, we try dividing 10,972,745 by 3:

10,972,745 ÷ 3 = 3,657,581.6667

If the quotient is a whole number, then 3 and 3,657,581.6667 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 10,972,745
-1 -10,972,745

Let's try dividing by 4:

10,972,745 ÷ 4 = 2,743,186.25

If the quotient is a whole number, then 4 and 2,743,186.25 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 10,972,745
-1 10,972,745
Keep dividing by the next highest number until you cannot divide anymore.

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

15735313,5071,567,5352,194,54910,972,745
-1-5-7-35-313,507-1,567,535-2,194,549-10,972,745

More Examples

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