43 is the natural number following 42 and preceding 44.
<< 40 41 42 43 44 45 46 47 48 49 >>
List of numbers -- Integers
0 10 20 30 40 50 60 70 80 90 >>
43 number - In mathematics.
Forty-three is the 14th smallest prime number. The previous is forty-one, with which it comprises a twin prime, the next is forty-seven. 43 is a centered heptagonal number. 43 is the smallest prime that is not a Chen prime.< ...
Centuries: 4th century BC - 3rd century BC - 2nd century BC
Decades: 280s BC 270s BC 260s BC 250s BC 240s BC - 230s BC - 220s BC 210s BC 200s BC 190s BC 180s BC
Years: 243 BC 242 BC 241 BC 240 BC 239 BC - 238 BC - 237 BC 236 BC 235 BC 234 BC 233 BC
Events
Tiberius Sempronius Gracchus assaults Sardinia upon a mutiny of Carthaginian mercenaries on the island, and makes it into a Roman province.
In the Battle of Utica, the loyal Carthaginian troops of Hamilcar Barca defeat rebellious mercenaries.
Parthia breaks away from the Seleucid Empire
Centuries: 4th century BC - 3rd century BC - 2nd century BC
Decades: 280s BC 270s BC 260s BC 250s BC 240s BC - 230s BC - 220s BC 210s BC 200s BC 190s BC 180s BC
Years: 242 BC 241 BC 240 BC 239 BC 238 BC - 237 BC - 236 BC 235 BC 234 BC 233 BC 232 BC
Events
Hamilcar Barca suppresses the revolt of Carthaginian mercenaries, who had revolted over being short-changed for back pay.
Quintus Fulvius Flaccus the elder is Roman consul.
Births
Deaths
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Centuries: 4th century BC - 3rd century BC - 2nd century BC
Decades: 280s BC 270s BC 260s BC 250s BC 240s BC - 230s BC - 220s BC 210s BC 200s BC 190s BC 180s BC
Years: 235 BC 234 BC 233 BC 232 BC 231 BC - 230 BC - 229 BC 228 BC 227 BC 226 BC 225 BC
Events
Sieve of Eratosthenes developed.
The Roman Lucius Coruncanius is assaulted and killed while on a diplomatic mission to Queen Teuta, an event leading to the First Illyrian War.
Temple of Horus built by Ptolemy II ...
Centuries: 4th century BC - 3rd century BC - 2nd century BC
Decades: 280s BC 270s BC 260s BC 250s BC 240s BC - 230s BC - 220s BC 210s BC 200s BC 190s BC 180s BC
Years: 237 BC 236 BC 235 BC 234 BC 233 BC - 232 BC - 231 BC 230 BC 229 BC 228 BC 227 BC
Events
King Agron dies, and the throne of Illyria is occupied by his wife Queen Teuta (Tefta), "the Catherine the Great of Illyria", who expels the Greeks from the Albanian coast and then launches pirate ships into the Ion ...
Forty-three is the 14th smallest prime number. The previous is forty-one, with which it comprises a twin prime, the next is forty-seven. 43 is a centered heptagonal number. 43 is the smallest prime that is not a Chen prime.
Let a(0) = a(1) = 1, and thenceforth a(n) = (a(0)2 + a(1)2 + ... + a(n-1)2) / (n-1). This sequence continues 1 1 2 3 5 10 28 154... (sequence A003504 in OEIS). Amazingly, a(43) is the first term of this sequence that is not an integer.
Negative forty ...
43 number - In the periodic table.
The chemical element with the atomic number 43 (technetium) is the element with the lowest ordinal number, which does not possess stable isotopes. The technetium preceding element 42 (molybdenum) and the technetium following element 44 (ruthenium) have stable isotopes.
43 number - In astronomy.
Messier object M43, a magnitude 7.0 H II region in the constellation of Orion, a part of the Orion Nebula, and also sometimes known ...
