Home > 109 (number)
Integers109 is the natural number following 108 and preceding 110.
One hundred nine ( British English: One hundred and nine)is the 29th prime number. The previous prime is 107, making them both twin primes. 109 is a centered triangular number.
One hundred nine is also:
- The atomic numberThe atomic number Z is a term used in chemistry and physics to represent the number of protons found in the nucleus of an atom. In an atom of neutral charge, the number of electrons typically equals the atomic number. The atomic number originally meant th of meitneriumhassium meitnerium darmstadtium Ir Mt Full table Known properties Name, Symbol, Numbermeitnerium, 109, Mt Chemical series Transition metals Group, Period, Block 9, 7 , d Appearance unknown; probably metallic, silvery white or gray Atomic weight 1 E-25 kg|.
- The registry number of the famous patrol boat PT-109, commanded by John F. KennedyJohn Fitzgerald Kennedy ( May 29, 1917 November 22, 1963), often referred to as Jack Kennedy or JFK was the 35th ( 1961 1963) President of the United States. He was the youngest ever to be elected president and the youngest president ever to die in office.
- The year AD 109Alternate uses, see Number 109''. Events Births Deaths 109. or 109 BCCenturies: 3rd century BC 2nd century BC 1st century BC Decades: 150s BC 140s BC 130s BC 120s BC 110s BC 100s BC 90s BC 80s BC 70s BC 60s BC 50s BC Years: 114 BC 113 BC 112 BC 111 BC 110 BC 109 BC 108 BC 107 BC 106 BC 105 BC 104 BC Births Deaths Events ..