This is documentation for Mathematica 7, which was
based on an earlier version of the Wolfram Language.
 Number Digits Mathematica can handle numbers of essentially unlimited length, in any base, using state-of-the-art platform-optimized algorithms, including several developed at Wolfram Research. For rational numbers, it uses number theoretic methods to efficiently find the exact forms of repeating digit sequences. IntegerDigits — digits of an integer RealDigits — digits of a real number FromDigits — reconstruct a number from its digits IntegerLength — total number of digits in an integer DigitCount — count the number of occurrences of given digits      IntegerString — digits of an integer as a string BaseForm — display a number in base b      TUTORIALS Digits in Numbers Integer and Number Theoretic Functions MORE ABOUT Number Precision Representation of Numbers Continued Fractions Number Recognition RELATED LINKS Demonstrations related to Number Digits (The Wolfram Demonstrations Project)