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  2. Quaternary numeral system - Wikipedia

    en.wikipedia.org/wiki/Quaternary_numeral_system

    As with the octal and hexadecimal numeral systems, quaternary has a special relation to the binary numeral system.Each radix four, eight, and sixteen is a power of two, so the conversion to and from binary is implemented by matching each digit with two, three, or four binary digits, or bits.

  3. ISO 3166-1 numeric - Wikipedia

    en.wikipedia.org/wiki/ISO_3166-1_numeric

    They are similar to the three-digit country codes developed and maintained by the United Nations Statistics Division, from which they originate in its UN M.49 standard. They were first included as part of the ISO 3166 standard in its second edition in 1981, but they were released by the United Nations Statistics Division since as early as 1970.

  4. Largest known prime number - Wikipedia

    en.wikipedia.org/wiki/Largest_known_prime_number

    The largest known prime number is 2 82,589,933 − 1, a number which has 24,862,048 digits when written in base 10. It was found via a computer volunteered by Patrick Laroche of the Great Internet Mersenne Prime Search (GIMPS) in 2018. [1] A 2020 plot of the number of digits in the largest known prime by year, since the electronic computer.

  5. List of highest mountains on Earth - Wikipedia

    en.wikipedia.org/wiki/List_of_highest_mountains...

    Almost all mountains in the list are located in the Himalaya and Karakoram ranges to the south and west of the Tibetan plateau. All peaks 7,000 m (23,000 ft) or higher are located in East, Central or South Asia in a rectangle edged by Noshaq (7,492 m or 24,580 ft) on the Afghanistan–Pakistan border in the west, Jengish Chokusu (Tuōmù'ěr Fēng, 7,439 m or 24,406 ft) on the Kyrgyzstan ...

  6. South African Qualifications Authority - Wikipedia

    en.wikipedia.org/wiki/South_African...

    The South African Qualifications Authority (SAQA) is a statutory body, regulated in terms of the National Qualifications Framework Act No. 67 of 2008. [2] It is made up of 29 members appointed by the Minister of Education in consultation with the Minister of Labour.

  7. Luhn algorithm - Wikipedia

    en.wikipedia.org/wiki/Luhn_algorithm

    The Luhn algorithm or Luhn formula, also known as the "modulus 10" or "mod 10" algorithm, named after its creator, IBM scientist Hans Peter Luhn, is a simple check digit formula used to validate a variety of identification numbers.

  8. List of highest points in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/List_of_highest_points_in...

    Rank Name Height Location 1 (The tallest mountain in a territory claimed by the UK) Mount Hope: 3,239 metres (10,627 ft) British Antarctic Territory

  9. Radix - Wikipedia

    en.wikipedia.org/wiki/Radix

    In a positional numeral system, the radix (pl.: radices) or base is the number of unique digits, including the digit zero, used to represent numbers.For example, for the decimal system (the most common system in use today) the radix is ten, because it uses the ten digits from 0 through 9.