Q: What are the factor combinations of the number 725,022,661?
A:
Positive:
1 x 72502266111 x 65911151
Negative:
-1 x -725022661-11 x -65911151
A:
Positive:
1 x 72502266111 x 65911151
Negative:
-1 x -725022661-11 x -65911151
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 725,022,661, 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 | 725,022,661 | |
-1 | -725,022,661 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 725,022,661.
Example:
1 x 725,022,661 = 725,022,661
and
-1 x -725,022,661 = 725,022,661
Notice both answers equal 725,022,661
With that explanation out of the way, let's continue. Next, we take the number 725,022,661 and divide it by 2:
725,022,661 ÷ 2 = 362,511,330.5
If the quotient is a whole number, then 2 and 362,511,330.5 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 | 725,022,661 | |
-1 | -725,022,661 |
Now, we try dividing 725,022,661 by 3:
725,022,661 ÷ 3 = 241,674,220.3333
If the quotient is a whole number, then 3 and 241,674,220.3333 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 | 725,022,661 | |
-1 | -725,022,661 |
Let's try dividing by 4:
725,022,661 ÷ 4 = 181,255,665.25
If the quotient is a whole number, then 4 and 181,255,665.25 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 | 725,022,661 | |
-1 | 725,022,661 |
If you did it right, you will end up with this table:
1 | 11 | 65,911,151 | 725,022,661 |
-1 | -11 | -65,911,151 | -725,022,661 |
Here are some more numbers to try:
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