Q: What are the factor combinations of the number 45,010,931?

 A:
Positive:   1 x 450109317 x 643013323 x 1956997161 x 279571
Negative: -1 x -45010931-7 x -6430133-23 x -1956997-161 x -279571


How do I find the factor combinations of the number 45,010,931?

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 45,010,931, 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 45,010,931
-1 -45,010,931

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 45,010,931.

Example:
1 x 45,010,931 = 45,010,931
and
-1 x -45,010,931 = 45,010,931
Notice both answers equal 45,010,931

With that explanation out of the way, let's continue. Next, we take the number 45,010,931 and divide it by 2:

45,010,931 ÷ 2 = 22,505,465.5

If the quotient is a whole number, then 2 and 22,505,465.5 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 45,010,931
-1 -45,010,931

Now, we try dividing 45,010,931 by 3:

45,010,931 ÷ 3 = 15,003,643.6667

If the quotient is a whole number, then 3 and 15,003,643.6667 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 45,010,931
-1 -45,010,931

Let's try dividing by 4:

45,010,931 ÷ 4 = 11,252,732.75

If the quotient is a whole number, then 4 and 11,252,732.75 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 45,010,931
-1 45,010,931
Keep dividing by the next highest number until you cannot divide anymore.

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

1723161279,5711,956,9976,430,13345,010,931
-1-7-23-161-279,571-1,956,997-6,430,133-45,010,931

More Examples

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