Terminating Decimal
I believe you are asking about the vinculum, and it is used to indicate one or more digits that repeat their pattern forever.
3.14 has a finite number of digits. All numbers with a finite number of digits are rational. Pi has an infinite number of digits, AND the digits don't repeat in a regular pattern. (Numbers with repeating decimals are rational as well.)
Not sure about a demial, but the number is called a repeating or recurring decimal.
Not sure about a demial, but the number is called a repeating or recurring decimal.
Assuming you can repeat digits (like the number 1228 for example), there are 84 = 4096.If you can't repeat digits then it is equivalent to 8!/4! = 1680.
The digits of pi neither repeat or end. They go on forever, but they do not repeat themselves. (Pi is a irrational number, it cannot be written as a fraction).
There are short strings of digits which will repeat, but there is no sequence which will repeat forever.
It is called a repeating decimal. It is also a form of a rational number.
It doesn't appear as if any of them do.
If the digits can repeat, then there are 256 possible combinations. If they can't repeat, then there are 24 possibilities.
12356789 is one such prime.
Terminating Decimal
I believe you are asking about the vinculum, and it is used to indicate one or more digits that repeat their pattern forever.
3.14 has a finite number of digits. All numbers with a finite number of digits are rational. Pi has an infinite number of digits, AND the digits don't repeat in a regular pattern. (Numbers with repeating decimals are rational as well.)
Not sure about a demial, but the number is called a repeating or recurring decimal.
Not sure about a demial, but the number is called a repeating or recurring decimal.