Yes. Pi (π) is an an irrational number. Here are some of the digits: 3.141592653589793238462643383279502884197169399375105...
There are short strings of digits which will repeat, but there is no sequence which will repeat forever.
The binary number system has zero and one as its only digits. A number or letter expressed in binary notation will appear as a series of zeroes and ones.
The bank ID routing number on a check is printed at the very bottom of the check on the left hand side. The routing number is a series of nine digits.
There are several infinite series. To find PI to x digits, evaluate each term to x+2 digits until the value is 0. Then round to x digits.
Yes. A rational number is any number that can be expressed as a fraction (one integer divided by another). Any decimal number that is finite (i.e. the sequence of digits comes to an end, such as in the above number) or infinitely repeats a series of digits (such as 0.3 recurring; i.e. 1/3) can be expressed as a fraction and is therefore rational.
3. The digits are in alphabetical order in English.
71 79 95 109 The series: Sn+1 = Sn + Sum of the digits of Sn with S0 = 11
It appears as if you are multiplying the digits together to create the next number. If that's true, the fifth number would be 8 and the sixth digit and any after that would be zero.
1970- some were made in late 1969. There should be two more digits at the beginning of the serial number that is the date manufactured on this series.
"Pi" is an irrational number. No series of digits can represent its value exactly, whether written as a fraction or as a decimal. The decimal can be extended to any number of significant figures, no matter how large, and never ends.