Q: What are the factor combinations of the number 615,521,477?
A:
Positive:
1 x 615521477443 x 1389439
Negative:
-1 x -615521477-443 x -1389439
A:
Positive:
1 x 615521477443 x 1389439
Negative:
-1 x -615521477-443 x -1389439
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 615,521,477, it is easier to work with a table - it's called factoring from the outside in.
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 | 615,521,477 | |
-1 | -615,521,477 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 615,521,477.
Example:
1 x 615,521,477 = 615,521,477
and
-1 x -615,521,477 = 615,521,477
Notice both answers equal 615,521,477
With that explanation out of the way, let's continue. Next, we take the number 615,521,477 and divide it by 2:
615,521,477 ÷ 2 = 307,760,738.5
If the quotient is a whole number, then 2 and 307,760,738.5 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 | 615,521,477 | |
-1 | -615,521,477 |
Now, we try dividing 615,521,477 by 3:
615,521,477 ÷ 3 = 205,173,825.6667
If the quotient is a whole number, then 3 and 205,173,825.6667 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 | 615,521,477 | |
-1 | -615,521,477 |
Let's try dividing by 4:
615,521,477 ÷ 4 = 153,880,369.25
If the quotient is a whole number, then 4 and 153,880,369.25 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 | 615,521,477 | |
-1 | 615,521,477 |
If you did it right, you will end up with this table:
1 | 443 | 1,389,439 | 615,521,477 |
-1 | -443 | -1,389,439 | -615,521,477 |
Here are some more numbers to try:
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