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  2. Decimalisation - Wikipedia

    en.wikipedia.org/wiki/Decimalisation

    Decimalisation or decimalization (see spelling differences) is the conversion of a system of currency or of weights and measures to units related by powers of 10.. Most countries have decimalised their currencies, converting them from non-decimal sub-units to a decimal system, with one basic currency unit and sub-units that are valued relative to the basic unit by a power of 10, most commonly ...

  3. Millennium Prize Problems - Wikipedia

    en.wikipedia.org/wiki/Millennium_Prize_Problems

    The Riemann hypothesis is concerned with the locations of these nontrivial zeros, and states that: The real part of every nontrivial zero of the Riemann zeta function is 1/2. The Riemann hypothesis is that all nontrivial zeros of the analytical continuation of the Riemann zeta function have a real part of ⁠ 1 / 2 ⁠.

  4. Redenomination - Wikipedia

    en.wikipedia.org/wiki/Redenomination

    year Nature of the new unit Turkish new lira = 1 million old lira: 2005 "new" is an official designation and was dropped in 2009. New Taiwan dollar = 40 000 old dollars: 1949 "new" is an official designation and is still used in official documents today. Argentine austral = 1 000 Peso argentino: 1985 completely new name Yugoslav 1993 dinar = 1 ...

  5. History of the rupee - Wikipedia

    en.wikipedia.org/wiki/History_of_the_rupee

    However, Indian rupees were being smuggled from India to the states of the Persian Gulf in exchange for gold. It was estimated in 1959 that the total amount of gold in private hands in India was about US$1.75 to 2 billion – roughly two-thirds of the value of paper money in circulation.

  6. History of the Indonesian rupiah - Wikipedia

    en.wikipedia.org/wiki/History_of_the_Indonesian...

    Although most coin was imported, (chiefly) silver and also some gold 'rupee' coins were minted locally in the 18th and early 19th century. The first bank paper appeared with the formation of the De Bank Courant en Bank van Leening in 1752, and a number of issues were made over the next sixty years, which all tended to lose value over time due ...

  7. 100,000 - Wikipedia

    en.wikipedia.org/wiki/100,000

    Increments of 10 5 from 100,000 through a one million have the following prime counts: 8,392 primes between 100,000 and 200,000. [b] This is a difference of 1,200 primes from the previous range. 104,729 is the 10,000th prime, which is in this range. 199,999 is prime. 8,013 primes between 200,000 and 300,000.

  8. Coins of the Indonesian rupiah - Wikipedia

    en.wikipedia.org/wiki/Coins_of_the_Indonesian_rupiah

    The 1974 5 rupiah, meanwhile, was updated '1979', issued from March 1980, retaining its family planning message, but adding a circular decoration to both reverse and obverse of the coin, and being shrunk in size from 3.0 to 1.4 grams, presumably to cut the cost of production. 413 million coins were minted dated 1978, while 5 million were later ...

  9. Economy of India - Wikipedia

    en.wikipedia.org/wiki/Economy_of_India

    Over 10 million foreign tourists arrived in India in 2017 compared to 8.89 million in 2016, recording a growth of 15.6%. [320] The tourism industry contributes about 9.2% of India's GDP and employs over 42 million people. [321] India earned $21.07 billion in foreign exchange from tourism receipts in 2015. [322]