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120 is . the factorial of 5, i.e., ! =.; the fifteenth triangular number, [2] as well as the sum of the first eight triangular numbers, making it also a tetrahedral number. 120 is the smallest number to appear six times in Pascal's triangle (as all triangular and tetragonal numbers appear in it).
Since Earth's Birthday Project's founding in 1989, it is estimated that more than 15 million school children have participated in butterfly and sunflower activities, as well as rainforest and river conservation. In the late 1980s, as the twentieth anniversary of Earth Day approached, Cliff Ross was teaching middle school in New York City.
Earth Day is an annual event on April 22 to demonstrate support for environmental protection.First held on April 22, 1970, it now includes a wide range of events coordinated globally by EARTHDAY.ORG (formerly Earth Day Network) [1] including 1 billion people in more than 193 countries.
There are several possible problems with this page. First, "One novemtriginillion is known as the Shannon number." It seems like the Shannon Number is actually 900 40, which is 1.478...×10 118, for which 10 120 is a poor approximation.
Claude Shannon. The Shannon number, named after the American mathematician Claude Shannon, is a conservative lower bound of the game-tree complexity of chess of 10 120, based on an average of about 10 3 possibilities for a pair of moves consisting of a move for White followed by a move for Black, and a typical game lasting about 40 such pairs of moves.
120 may refer to: 120 (number), the number; AD 120, a year in the 2nd century AD; 120 BC, a year in the 2nd century BC; 120 film, a film format for still photography; 120, a 2008 film; 120 (MBTA bus), a Massachusettes Bay Transport Authority bus route; 120 (New Jersey bus), a New Jersey Transit bus route; 120 (Kent) Construction Regiment, Royal ...