103 number

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103 is the natural number following 102 and preceding 104.

Template:Numbers 100s
Cardinal one hundred [and]
three
Ordinal103rd (one hundred [and] third)
Factorization
Roman numeralCIII
Binary1100111
Hexadecimal67

In mathematics

One hundred three is the 27th prime number. The previous prime is 101, making them both twin primes.

103 is a strictly non-palindromic number.

In science

In astronomy,

Messier object M103, a magnitude 7.0 open cluster in the constellation Cassiopeia
The New General Catalogue object NGC103, an open cluster in the constellation Cassiopeia
Asteroid 103 Hera
The Saros number of the solar eclipse series which began on 387 April 4 and ended on 1667 May 22. The duration of Saros series 103 was 1280.1 years, and it contained 72 solar eclipses.
The Saros number of the lunar eclipse series which began on 454 August 24 and ended on 1951 February 21. The duration of Saros series 103 was 1496.5 years, and it contained 84 lunar eclipses.

In other fields

One hundred three is also:

  • The flight number of Pan Am Flight 103, which crashed over Lockerbie, Scotland and was at one time called "the air-disaster of the century".
  • The year AD 103 or 103 BC.

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