<79 | Number Data-BaseRandom Number |
81> |

## The Number 80: Properties and Meanings

Prime Factors of**80**=2x2x2x2x5.

**80** can be Partitioned 41 times with each term no larger than 2.

**80** can be Partitioned 574 times with each term no larger than 3.

**80** is an Abundant Number.

The Chemical Element Mercury has an atomic number of **80**.

### The Year 80 AD

In the year**80**AD the Emperor Titus inaugurates the Flavian Amphitheatre with 100 days of games.

In the year **80** AD the original Roman Pantheon was destroyed in a fire, together with many other buildings.

In the year **80** AD the Eifel Aqueduct was constructed.

In the year **80** AD the aeolipile, the first steam engine, was invented by Hero of Alexandria.

In the year **80** AD Vologases II of Parthia died.

In the year **80** AD Julius Agricola, the Roman Governor of Britain,advanced into Scotland at the head of a Roman Army.

<79 | Number Data-BaseRandom Number |
81> |

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