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Learn how to use the major system, a mnemonic technique to memorize numbers by converting them into consonants and words. The system is based on the principle that images are easier to remember than numbers and has a standard mapping of numerals to sounds.
Learn how to write and pronounce numbers in Hebrew, a quasi-decimal alphabetic numeral system using the letters of the Hebrew alphabet. The number 6 in Hebrew is shishah (שִׁשָּׁ) or shishi (שִׁשִּי).
A comprehensive overview of different writing systems for expressing numbers, with examples, names, bases, and approximate dates of origin. Learn about the history and features of various numeral systems, such as Roman, Indian, Chinese, and Arabic.
Learn about the history and types of alphabetic numeral systems, which use the letters of an alphabet to express numbers. Compare the Greek, Hebrew, Arabic, and other systems with examples and tables.
Learn about the history, layout, and functions of the telephone keypad, which has letters and numbers on its buttons. Find out how the letters are used for telephone exchange names, phonewords, and text entry, and how the key tones are produced for dialing and signaling.
Phonewords are mnemonic phrases represented as alphanumeric equivalents of a telephone number. Learn about the advantages, disadvantages, and regional variations of phonewords in different countries.
5318008 is one of the most famous examples of calculator spelling, which is an unintended characteristic of the seven-segment display that resembles letters when upside-down. Learn how to spell "BOOBIES" and other words with calculators, and see the history and applications of this phenomenon.
Learn about the base 3 or trinary system of numbers, which uses three digits: 0, 1 and 2. Compare ternary with binary and decimal systems, and see examples of ternary representations of integers and powers of 3.