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IN MATHEMATICS 105 is the Double Factorial of 7 . 105 is a Triangular Number and a 12 -gonal Number as well as a Sphenic Number and a Zeisel Number . It comes in the middle of the Prime Quadruplet (101, 103, 107, 109). The only other such odd numbers less than a thousand are 15, 195 and 825. 105 is also a Pseudoprime to the prime bases: 13, 29, 41, 43, 71, 83 and 97. One hundred five is also a number ''n'' for which is prime, for . (This even works up to , ignoring the negative sign.) IN SCIENCE
In Astronomy , : Messier Object M105 , a Magnitude 11.0 Elliptical Galaxy in the Constellation Leo : The , a magnitude 13.2 Spiral Galaxy in the constellation Pisces : Asteroid 105 Artemis :The series which began on 499 March 27 and ended on 1779 May 16 . The duration of Saros series 105 was 1280.1 years, and it contained 72 solar eclipses. :The Saros number of the Lunar Eclipse series which began on 566 August 16 and ended on 1882 October 26 . The duration of Saros series 105 was 1316.2 years, and it contained 74 lunar eclipses. IN OTHER FIELDS 105 is also:
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