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97 (number)

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97
  
98 →

Ordinal
  
97th(ninety-seventh)

Prime
  
25th

Cardinal
  
ninety-seven

Factorization
  
prime

Divisors
  
1, 97

97 (ninety-seven) is the natural number following 96 and preceding 98.

Contents

In mathematics

97 is:

  • the 25th prime number (the largest two-digit prime number in base 10), following 89 and preceding 101.
  • a Proth prime as it is 3 × 25 + 1.
  • the eleventh member of the Mian–Chowla sequence.
  • the smallest factor of one more than the product of the first twenty-five terms of the Euclid–Mullin sequence, making it the twenty-sixth term.
  • a self number in base 10, since there is no integer that added to its own digits adds up to 97.
  • the highest two digit number where the sum of its digits is a square.

    • The numbers 97, 907, 9007, 90007 and 900007 are happy primes. However, 9000007 (read as nine million seven) is composite and has the factorisation 277 × 32491.

    In astronomy

  • Messier object M97, a magnitude 12.0 planetary nebula in the constellation Ursa Major, also known as the Owl Nebula
  • The New General Catalogue object NGC 97, an elliptical galaxy in the constellation Andromeda
  • The Saros number of
  • the solar eclipse series which began in June 123 and ended in July 1385. The duration of Saros series 97 was 1262.1 years, and it contained 71 solar eclipses.
  • the lunar eclipse series which began in March 425 and ended in May 1723. The duration of Saros series 97 was 1298.1 years, and it contained 73 lunar eclipses.

    • In other fields

    Ninety-seven is:

  • The atomic number of berkelium, an actinide.
  • The 97th United States Congress met during the Ronald Reagan administration, from January 1981 to January 1983
  • The 10-97 police code means "arrived on the scene"
  • STS-97 Space Shuttle Endeavour mission launched November 30, 2000
  • The 97th Infantry Division was a unit of the United States Army in World War I and World War II.
  • Madden NFL 97 was the first John Madden NFL American football game to be created in the 32-bit gaming era.
  • Radio stations broadcasting on frequencies near 97, such as Hot 97, New York City and 97X, Tampa, Florida

    • In music

  • A song Baby Boy / Saturday Night '97 by Whigfield
  • The number of the Southern Railway train in the Wreck of the Old 97, a ballad recorded by numerous artists, including Flatt and Scruggs, Woody Guthrie, Johnny Cash, Nine Pound Hammer, and Hank Snow.
  • The Old 97's are an alt-country band, which took their name from the song "The Wreck of the Old 97"
  • A song by Alkaline Trio off their self-titled album
  • The Marching 97, marching band of Lehigh University.

    • In sports

  • The car number of Kurt Busch's Ford when he won the 2004 NASCAR Nextel Cup Series championship.
  • The jersey number 97 has been retired by the Phoenix Coyotes to honor Jeremy Roenick.

    • References

    97 (number) Wikipedia
    (Text) CC BY-SA


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